Linking Luxury Brand Perceived Value, Brand Attachment, and Purchase Intention: The Role of Consumer Vanity

: The current study adds to the literature on the indirect effect of luxury brand perceived value on purchase intention via the brand attachment under the boundary conditions of consumer vanity. The authors employed a quantitative method approach, conducting an online survey with 508 respondents in Lithuania. Empirical research analysis reveals that the greater the perceived value of a luxury brand, the greater the consumer purchase intention. The latter is most strongly affected by the luxury brand perceived functional value. The study demonstrates that the greater the luxury brand perceived value among consumers, the greater their brand attachment, which in turn leads to a greater purchase intention. As there is a positive emotional relationship between a luxury brand and the consumer, the consumer’s purchase intention is also affected by the luxury brand perceived symbolic value, i.e., the capacity of the brand to communicate the consumer’s success, leadership, and power. Consumer vanity was not statistically signiﬁcant to the nature of the relationship between luxury brand perceived value, brand attachment, and purchase intention. Luxury car marketers may beneﬁt by focusing on the social and symbolic value of luxury car brand value in communication with brand-attached consumers in Lithuania. luxury brand value brand attachment strengthens.


Introduction
In recent years, researchers have been increasingly attentive to topics of luxury, luxury goods, and luxury brands. One of the factors encouraging such interest is the growth of the global luxury market. During the past twenty years, the total number of this market's consumers has tripled worldwide [1]. It has been estimated that this market will grow annually by 5.63% in Lithuania [2]. Nevertheless, the Covid-19 crisis has hit and changed the luxury and fashion industry substantially [3] and accelerated a channel shift to ecommerce as well as an emphasis on innovations related to sustainability and circular design [4]. Due to the issues caused by the pandemic, marketing specialists have had difficulty ensuring a sufficient perceived value of luxury brands among consumers [5].
According to Kapferer and Bastien, the concept of luxury is attractive and fashionable, so even mass-production brands try to make their goods and the consumer experience reflect a sense of luxuriousness [6]. As a result, it becomes difficult for the consumer to understand what truly is a luxury good or a luxury brand [6]. In addition, despite the attention that researchers have paid to the study of luxury brands, it remains unclear how these brands can be brought to the market most efficiently [7,8], whereas the concept of 'luxury' does not have a clear definition [9][10][11][12] and researchers agree on little of what it includes [8,11,[13][14][15].
Scientific literature analysis reveals that the direct relationship between luxury brand perceived value and purchase intention has already been widely considered [15][16][17][18][19]. Never-theless, research results indicate that separate dimensions of luxury brand perceived value differently affect (or do not affect) purchase intention [15][16][17]19]. The inconsistent findings of the relationship between individual dimensions of luxury brand perceived value and purchase intention suppose a need for research into the underlying mechanisms and the boundary conditions of the abovementioned relationship. Brand attachment was found to be a predictor of consumer purchase intention [17,[20][21][22][23]. This relationship suggests that brand attachment may potentially explain the relationship between luxury brand perceived value and purchase intention. Moreover, research shows that consumer vanity, although considered only fragmentally in the context being discussed, has an effect on the relationship between luxury brand perceived value and purchase intention [16,17]. We address the abovementioned research gap by exploring the effect of luxury brand perceived value on brand attachment and purchase intention, considering the moderating role of consumer vanity. Thus, this study aims to to uncover the effect of luxury brand perceived value on brand attachment and purchase intention in the context of consumer vanity. Our key research questions are: how does luxury brand perceived value affect brand attachment and, in turn, purchase intention, and how does consumer vanity affect the nature of the relationship between luxury brand perceived value, brand attachment, and purchase intention?
The current study makes several contributions to the field of luxury brand perceived value and brand attachment. It builds on previous research by arguing that brand attachment acts as a mediator, transmitting the effect of luxury brand perceived value on purchase intentions. Furthermore, this study investigates the disentangled effects of individual dimensions of luxury brand perceived value on brand attachment and purchase intention, in such a manner revealing a more refined picture of the effects of each individual dimension. Finally, the study raises the question of whether consumer vanity influences the nature of the relationship between luxury brand perceived value and brand attachment and luxury brand perceived value and purchase intention.

Theoretical Perspective on Luxury Consumption
The transformative nature of luxury meanings prevents agreement on a fixed definition [24]. Most commonly, luxury is expressed through excellence, creativity, and exclusivity, with the modern approach indicating that even one of these conditions is sufficient to represent luxury driven by brands [25]. Luxury and conspicuousness are inextricably linked, despite the fact that luxury means different things to different people. Branddisplayed luxury communicates symbolic meanings to others and helps to signal status, distinctiveness, power, and wealth. Therefore, the conventional meaning of luxury is perceived as socially oriented and rooted in self-interest [26]. Given the above, it is plausible to suggest that consumers value luxury for its properties in conveying the externally oriented meanings and in obtaining desirable self-oriented transformations. Wiedmann et al. [27] proposed the theoretical framework that defines luxury "as the highest level of prestigious brands encompassing several physical and psychological values" [27] (p. 1).
The luxury phenomenon has received a vast amount of scientific attention across different disciplines. For example, a bibliometric citation review conducted by [28] identified ten different luxury research perspectives that have evolved over time-luxury consumption as a social phenomenon, luxury goods as a status signal, luxury culture and meaning, self-concept and relationships, and brand equity to name but a few. The consumer perspective dominates in the domain of luxury research. Recent developments in the field revealed that luxury consumption antecedents range from biological and sociopsychological to structural, such as income inequality [29]. Moreover, the growing body of luxury culture and meaning research shows that luxury has become a fluid concept. Luxuriousness may imply meanings that far depart from the conventional understanding of luxury consumption as exclusivity-driven status consumption [30]. Both material objects and very internally oriented and subjective consumer experiences can be symbolically charged with aspirational value [31]. As a result, luxury consumption takes on many different forms and can be seen as uniquely defined and constructed. Self-determination theory [32] is the dominant conceptual foundation in luxury research, positing that luxury consumption is motivated by both intrinsic (self-identity) and extrinsic (aspiration for status, external rewards) motives. Consumers aspire to personal or interpersonal values derived from luxury consumption [8]. Nonetheless, the desire for status is regarded as the primary motivator driving luxury consumption.
Intrinsic and extrinsic motivation have many parallels with the self-concept literature stream [33]. Luxury brands whose user and usage imagery are congruent with the consumer's self-concept are more positively approached by consumers [34]. Similarly, Malär et al. [35] found, however not within the luxury context, that actual self-congruence boosts emotional brand attachment. The explanation for the abovementioned relationship is built on the self-verification theory, which suggests that people are prone to behaving consistently with their self-concept. Consequently, it is logical to derive that the same relationship pattern should be plausible in the luxury brand domain. Luxury brands promise value, which may serve as a source of identity and self-expression, consequently strengthening the consumer-brand connection. While the actual self-congruence-related brand attachment manifests itself as the intrinsic motivation for luxury consumption, the ideal-self congruence is attributable to the extrinsic set of motives. The value derived from the luxury brand helps to build the aspirational self through compensation for selfdiscrepancies and developing a desirable identity. The ideal self-congruence was also found to be linked to heightened attachment to the luxury brand [21]. Thus, the luxury brand provides value, which can be used as a resource for constructing the ideal self. However, recent studies assume that self-congruence motives may be in tension. For example, the symbolic value of a luxury brand may be at odds with the consumer's feeling of self-authenticity, which is more in line with the true or actual self, therefore resulting in a higher degree of self-discrepancy between the real and ideal self [36].
The current study's hypotheses were theoretically inferred from the self-congruence and attachment literature in line with the above reasoning. The luxury brand promises value, which may be used to sustain the actual self-concept or build the ideal self, which in turn improves the brand-self connection and positively affects behavioral intentions. Luxury brands pose desirable properties that provide benefits or resources for consumers in obtaining status, uniqueness, and other types of other or self-directed individual transformations. Luxury-brand-associated values function as the conveyors of identity, facilitating the creation of the desired self. The power of the luxury brand to enhance the ideal self or social self-concept further positively contributes to the consumer-brand relationship, translating into positive behavioral outcomes.

Effect of Luxury Brand Perceived Value on Purchase Intention
All three terms-luxury, luxury brands, and luxury goods-share similar definitions and conceptually overlap with one another. The classification of a product or brand as luxurious vs. ordinary usually depends on the consumer's perception of the value offered by the product or brand in question. Ko, Costello, and Taylor state that there is still no widely accepted definition of 'luxury brand' [37]. The authors emphasize that consumers perceive a luxury brand to be of high quality, offering authentic value through desired benefits (both functional and emotional), having a prestigious market image, being worthy of the highest price, and having a deep connection with the consumer. Luxury brand perceived value is a multidimensional construct that includes functional, experiential, and symbolic values [8,11,[13][14][15]38]. The dimension of perceived functional value indicates the function and physical characteristics that a brand possesses. Perceived experiential value defines what a brand means to the individual, and perceived symbolic value refers to what the brand signifies to others [38].
A number of scientific studies have uncovered a link between luxury brand perceived value and consumer purchase intention [11,[15][16][17]19]. Consumers who perceive the value that they expect and desire from the particular brand are ready to purchase and re-buy brands, recommend the brand to other consumers, and pay the highest price even if there are attractive competitive alternatives or cheap counterfeits on the market. For this reason, consumer subjective expectations and the perceived luxury brand value are significant causal factors in luxury consumption behavior [11].
Researchers have found that luxury brand perceived functional and experiential value have positive effects on luxury brand purchase intention [16,17]. Therefore, luxury brands must provide high quality and craftsmanship [16]. Research also shows that separate dimensions of luxury brand perceived value affect (or do not affect) consumer purchase intention differently [15][16][17]19], therefore presupposing the existence of an underlying causal mechanism. Choo et al. have found a strong relationship between the perceived functional value of a Korean luxury brand and consumer behavioral intention in the case of luxury fashion brands [16]. It is noted that, in order to attract new consumers, luxury brands should be characterized by excellent quality. In another study, Cheah et al. found that a higher perceived luxury brand functional and experiential value by Australian consumers leads to a higher purchase intention; however, the perceived luxury brand symbolic value was negatively correlated with the willingness to buy a luxury brand [17].
The previous research shows that the perceived luxury brand value plays an important role in consumer purchase intention, but the effect of this value may vary across countries and cultures. Taking into account the provided arguments, we hypothesize that: Hypothesis 1a ( H1a). Luxury brand perceived value has a positive effect on purchase intention.
Hypothesis 1b ( H1b). Luxury brand perceived functional value has a positive effect on purchase intention.
Hypothesis 1c ( H1c). Luxury brandperceived experiential value has a positive effect on purchase intention.
Hypothesis 1d ( H1d). Luxury brand perceived symbolic value has a positive effect on purchase intention.

Effect of Brand Attachment on Purchase Intention
Brand attachment is defined as an emotional connection between the consumer and a particular brand and reflects their feelings about the brand [39,40]. Many researchers [17,21,22,39,41,42] rely on Park et al.'s conceptual structure of brand attachment that consists of two components: brand prominence and brand-self connection [40]. However, different definitions of brand prominence can be found in the literature. For example, Han et al. refer to brand prominence as the ability of a brand to be recognized by others through visible markings and therefore signifies the degree of the brand's conspicuousness [43]. The definition used in the current study is based on the conceptualization proposed by Park et al. [40], where brand prominence refers to "the salience of the cognitive and affective bonds that connects the brand to the self" [40] (p. 2). Brand-self connection refers to the aspect of brand attachment that manifests as a feeling of oneness with the brand [40]. Consequently, Park et al. [40] state that brand attachment develops as a result of recognizing a brand as part of one's self-concept and because of the instrumental value brands can offer.  [17,[20][21][22][23]. Strong brand attachment leads to consumer loyalty [20,[40][41][42]44,45], a competitive advantage in the case of alternatives [40,45], lower consumer sensitivity to price [41,45], milder consequences in the case of brand failure [41,45], consumer resilience to change [41], favorable verbal recommendations, and a desire to maintain a relationship with the brand [45].
Saeed et al. emphasize that the intention to purchase a product determines why the consumer buys the brand at a certain time and under certain conditions [20]. Based on the results of Porter's research, a consumer will not want to buy the same brand again if the said consumer's attachment to the brand is weak [46]. Thus, brand attachment is expected to have a positive impact on the consumer's intention to purchase. The results show that there is a positive relationship between the consumer's attachment to the brand and their intention to buy it.
Cheah et al. note that brand prominence has a positive effect on consumer purchase intention towards luxury brands [17], while empirical research by Kaufmann et al. and Ku and Lin confirm this positive effect of the aforementioned two components on consumer purchase intention towards luxury brands [21,22]. As pointed out by Hung et al. and Taghipourian and Bakhsh, a feeling of emotional connection drives consumer brand attachment; as a result, a brand becomes extremely important to the consumer and strengthens their purchase intention [16,42]. Kaufmann et al. found that brand love, which is conceptually related to brand attachment, likewise has a positive effect on consumer purchase intention [21]. Ku and Lin emphasize that brand attachment helps to predict consumer behavior, including actual purchasing behavior [22]. The results of their study indicate that brand prominence affects consumer purchase intention more than brand-self connection.
According to Louis and Lombart, brand attachment is a long-term and terminal outcome of the brand-consumer relationship that can affect current behavior and future purchase intentions [47]. Given the above, following hypotheses are proposed: Hypothesis 2a ( H2a). Brand attachment has a positive effect on purchase intention.

Hypothesis 2b ( H2b).
Brand prominence has a positive effect on purchase intention.

Hypothesis 2c ( H2c).
Brand-self connection has a positive effect on purchase intention.

Relationship between Luxury Brand Perceived Value, Brand Attachment, and Purchase Intention
Research that links brand attachment and luxury brand perceived value has been largely ignored. Park et al. indicate that brand attachment occurs when a brand takes root in the consumer's subconscious, creating a connection between the brand and the consumer's self-concept [40]. The authors emphasize that the link between perceived brand value and brand attachment is obvious, but they do not base it on empirical evidence. Cheah et al. have analyzed the links between functional, experiential, and symbolic luxury brand values and brand prominence [17]. A positive relationship between luxury brand value and brand prominence was explained by the fact that brand prominence denotes brand visibility, which is vital in the consumption of luxury brands, because the primary motivation is to demonstrate those brands to important others-to use brands conspicuously [48]. This conspicuous consumption could be explained by the uniqueness theory, which asserts that consumers attempt to differentiate themselves from others through tangible goods [49,50]. Based on Han, Nunes, and Drèze, the authors emphasize that the perceived functional luxury brand value could positively affect brand prominence [48]. Similarly, the perceived experiential brand value can elicit a cognitive and behavioral response from the consumer [38], and therefore could potentially have a positive effect on brand prominence. Researchers point out that consumers often try to associate their self-concept with brand prestige, exclusivity, and fashion; thus, symbolic benefits are quite important for socially visible brands [51]. This supports the likely effect of perceived luxury brand symbolic value on brand prominence [17]. Furthermore, the authors indicate that the perceived symbolic luxury brand value has a negative effect on brand prominence in the case of prominent brands, but a positive link has been found in the case of more obscure brands. Nevertheless, the authors do not provide a plausible explanation for such results. Summarizing the results of recent research on the relationship between luxury brand perceived value and brand attachment, it appears that research is sparse, and results vary depending on the luxury brand and the symbolic value it conveys [17,22]. Nevertheless, a literature review provides a theoretical rationale for suggesting that brand attachment may potentially mediate the luxury brand perceived value and purchase intention relationship. Empirical evidence supports the claim that both brand attachment [17,[20][21][22][23] and luxury brand perceived value have a positive effect on consumer purchase intention [11,[15][16][17]19]. Furthermore, brand satisfaction is suggested to be an antecedent to luxury brand attachment and shows a positive association with the latter [52]. Brand satisfaction stems from the anticipated or experienced perceived value [53]. Moreover, consumers form strong bonds with brands when brands provide hedonic, symbolic, or functional resources that allow consumers to gratify, enrich, or enable themselves [45]. Recent studies empirically support such a relationship pattern (however, not within the context of luxury brands). For example, Liu et al. found that functional, symbolic, and hedonic values determine brand attachment within the context of the hotel industry [52]. Therefore, based on the above arguments, we assume that brand attachment may potentially explain the relationship between luxury brand perceived value and purchase intention. Recent studies demonstrate a high degree of interest in the relationship between luxury brand perceived value and purchase intention [17,22]. However, these relationships differ in strength and nature in different luxury brand cases. The literature analysis suggests that luxury brand perceived value may have an indirect effect on purchase intention, i.e., via brand attachment. The higher the luxury brand perceived value, the greater the brand attachment, which in turn increases purchase intention. Therefore, we hypothesize that: Hypothesis 3a ( H3a). Brand attachment mediates the relationship between luxury brand perceived value and purchase intention in such a way that luxury brand perceived value has a positive effect on brand attachment, which, in turn, has a positive effect on purchase intention.

Hypothesis 3b ( H3b).
Brand prominence mediates the relationship between luxury brand perceived functional value and purchase intention in such a way that luxury brand perceived functional value has a positive effect on brand prominence, which, in turn, has a positive effect on purchase intention.

Hypothesis 3c ( H3c).
Brand prominence mediates the relationship between luxury brand perceived experiential value and purchase intention in such a way that luxury brand perceived experiential value has a positive effect on brand prominence, which, in turn, has a positive effect on purchase intention.

Hypothesis 3d ( H3d).
Brand prominence mediates the relationship between luxury brand perceived symbolic value and purchase intention in such a way that luxury brand perceived symbolic value has a positive effect on brand prominence, which, in turn, has a positive effect on purchase intention.
Hypothesis 3e( H3e). Brand-self connection mediates the relationship between luxury brand perceived functional value and purchase intention in such a way that luxury brand perceived functional value has a positive effect on brand-self connection, which, in turn, has a positive effect on purchase intention.

Hypothesis 3f ( H3f).
Brand-self connection mediates the relationship between luxury brand perceived experiential value and purchase intention in such a way that luxury brand perceived experiential value has a positive effect on brand-self connection, which, in turn, has a positive effect on purchase intention.
Hypothesis 3g ( H3g). Brand-self connection mediates the relationship between luxury brand perceived symbolic value and purchase intention in such a way that luxury brand perceived symbolic value has a positive effect on brand-self connection, which, in turn, has a positive effect on purchase intention.

Effect of Consumer Vanity on the Relationship between Luxury Brand Perceived Value and Brand Attachment
Jun, Liang, Qiong, and Jian describe vanity as a psychological trait that indicates a desire to attribute to oneself an honor that one does not actually have or cannot have but whose possession one nonetheless attempts to demonstrate through words and deeds [54]. In the consumer behavior literature, consumer vanity includes four distinct aspects: (1) physical concern; (2) a physical view; (3) an achievement concern; and (4) an achievement view [55]. The first and second dimensions include physical vanity, and the third and fourth relate to the vanity of achievement [55][56][57]. Netemeyer et al. define physical vanity as an excessive concern for and/or a positive and potentially exaggerated view of one's physical appearance [55]. Achievement vanity is defined as excessive concern for and/or a positive and potentially exaggerated attitude towards one's personal achievements [55].
There is no research analyzing the moderating effect of consumer vanity on the relationship between luxury brand perceived value and brand attachment. Workman and Lee found that consumer vanity can affect consumer behavior in relation to brand selection [58]. According to the abovementioned authors, consumers with expressed physical appearance and achievement vanity choose goods based on their brand and give priority to prestigious brands since these are related to wealth and social status. Workman and Lee note that all four vanity dimensions are related to brand sensitivity and the brandbased selection of goods [58]. Given the preceding arguments, it is reasonable to assume that consumers who score highly on vanity will place a higher value on luxury brands and be more susceptible to brand attachment. Consumers who exhibit a high level of vanity are concerned about how others perceive them, so they are more likely to rely on luxury brand value to signal their desirable self. Because luxury brands are valued for their ability to convey symbolic meanings, they would be especially valuable to vanityoriented consumers in terms of providing resources that help demonstrate and sustain the consumer's desired self-concept. Thus, we hypothesize that: Hypothesis 4 ( H4). Consumer vanity moderates the relationship between luxury brand perceived value and brand attachment in such a way that as the level of consumer vanity increases, the positive relationship between luxury brand perceived value and brand attachment strengthens.

Effect of Consumer Vanity on the Relationship between Luxury Brand Perceived Value and Purchase Intention
According to Workman and Lee, consumer vanity has a significant impact on consumer behavior [58]. According to the authors, consumers with physical and achievement vanity choose goods according to the brand and prefer prestigious ones because they are associated with wealth and social status. Physical and achievement vanity affect consumer sensitivity to the brand and the choice of goods based on the brand. Thus, vanity influences consumer decisions, especially regarding brands [58].
Research conducted by Hung et al. and Cheah et al. shows that consumer vanity may moderate the relationship between luxury brand perceived value and purchase intention [16,17]. The results of the study by Hung et al. indicate that only achievement vanity has a positive effect on the relationship between brand perceived value and intention to purchase luxury handbags. These results are explained by the fact that perceived luxury brand value has a greater symbolic meaning to those who seek status through achievement than to those who emphasize physical appearance.
Both physical appearance and achievement vanity strengthen the relationship between luxury brand perceived value and purchase intention in cases of well-known luxury brands [17]. For persons who aim for a higher status via luxury brands that carry high symbolic value, achievement vanity (concern about individual achievements and an attitude towards the dimension of individual achievements) can strengthen the positive relationship between luxury brand perceived value and purchase intention [16]. In addition, individuals who seek physical attractiveness and recognition by others tend to purchase luxury brands that emphasize value and are well-known [17]. Based on the abovementioned arguments, a further hypothesis is suggested: Hypothesis 5 ( H5). Consumer vanity moderates the relationship between luxury brand perceived value and purchase intention in such a way that as the level of consumer vanity increases, the positive relationship between luxury brand perceived value and purchase intention strengthens. Figure 1 shows the conceptual modelthat shows the links between luxury brand perceived value, brand attachment, purchase intention, and consumer vanity. individuals who seek physical attractiveness and recognition by others tend to purchase luxury brands that emphasize value and are well-known [17]. Based on the abovementioned arguments, a further hypothesis is suggested:

Hypothesis 5 (H5).
Consumer vanity moderates the relationship between luxury brand perceived value and purchase intention in such a way that as the level of consumer vanity increases, the positive relationship between luxury brand perceived value and purchase intention strengthens. Figure 1 shows the conceptual modelthat shows the links between luxury brand perceived value, brand attachment, purchase intention, and consumer vanity.

Research Objective, Method, and Data
This empirical study aims is to identify the links between luxury brand perceived value, brand attachment, purchase intention, and consumer vanity in the case of luxury cars. For this purpose, the online survey method was employed. The questionnaire was distributed using the non-random convenience sampling method. The use of this method is justified if the objective of the research is only to test theoretical assumptions about relationships between luxury brand perceived value, brand attachment, purchase intention, and consumer vanity [59]. Moreover, the selection of this sampling method was determined by the lack of access to a list of the population being studied. A non-statistical comparative sample size determination method was chosen for the study [60]. Thirteen similar studies analyzing the relationships between at least two of the constructs under study were identified [15][16][17]19,22,61,62]. The analysis shows that the sample size for this study should be considered to be at least equal to the established mean, which is 476 respondents. Moreover, all investigated previous studies used a survey method. The link to

Research Objective, Method, and Data
This empirical study aims is to identify the links between luxury brand perceived value, brand attachment, purchase intention, and consumer vanity in the case of luxury cars. For this purpose, the online survey method was employed. The questionnaire was distributed using the non-random convenience sampling method. The use of this method is justified if the objective of the research is only to test theoretical assumptions about relationships between luxury brand perceived value, brand attachment, purchase intention, and consumer vanity [59]. Moreover, the selection of this sampling method was determined by the lack of access to a list of the population being studied. A non-statistical comparative sample size determination method was chosen for the study [60]. Thirteen similar studies analyzing the relationships between at least two of the constructs under study were identified [15][16][17]19,22,61,62]. The analysis shows that the sample size for this study should be considered to be at least equal to the established mean, which is 476 respondents. Moreover, all investigated previous studies used a survey method. The link to the survey was advertised through LinkedIn and Facebook social networks, writing personal messages to existing contacts, placing the questionnaire in specialized groups, and purchasing online advertising in 2019. These survey dissemination methods were chosen due to their effectiveness in achieving the maximum number of respondents in a minimum period of time.
A total of 512 participants completed the questionnaire, but the responses of 4 respondents were excluded based on the age of these respondents, which was less than 18 years. The final sample was composed of 508 (70.9% male and 29.1% female) individuals over 18 years old living in Lithuania (mean age = 37 years). The age ranges from 19 to 66 years with a mean age of 37 years. The mean age (36.7) is close to the median (36), which indicates that the values were distributed close to a normal distribution. The symmetric age distribution is also confirmed by the very small coefficient of asymmetry, which is equal to 0.583. A slightly different case was observed when analyzing the respondents' monthly income after taxes. The median (1950 EUR) is below the average (3115.36 EUR). This indicates that the monthly income distribution of the respondents in the study is asymmetric. The average monthly income of the respondents is 3115.36 EUR. The unequal distribution may have occurred due to the fact that a greater number of respondents of a higher social status were invited to participate in the survey, and Lithuania's income inequality as of 2019 is one of the largest in Europe [63]. The authors of this study chose to transform the distribution by bringing it closer to the norm. A new variable was created and used to verify whether revenue has a statistically significant effect on relationships between luxury brand perceived value, brand attachment, and purchase intent.
Recently, the main focus of researchers has been on the luxury fashion category [15][16][17]21,22,64]. An analysis of the scientific literature revealed that the effect of the luxury brand perceived value on brand attachment and purchase intention in the context of consumer vanity can vary depending on the luxury brand chosen and its category. In order to expand the research context and gain new insights, a new research context was chosen, i.e., luxury cars. It has been observed that luxury cars are closely associated with consumer vanity [57], belonging to one of the eight major categories of luxury goods [65]. Respondents were asked to mark which automotive brands they associate with luxury. After creating the most common response profile, named 'Luxury cars', and performing a frequency analysis, it was observed that, of all the options, the car brands that are most often associated with luxury are Bentley (17.9%), Maserati (17.1%), and Porsche (15.3%). Such brands were associated with luxury by 90.6%, 86.4%, and 77.8% of the respondents, respectively. The brands least associated with luxury were Audi (3.4%), Land Rover (4.6%), and BMW (5.8%). These brands were selected by 17.3%, 23.4%, and 29.5% of the respondents, respectively. Respondents were also asked to indicate one luxury brand with which further responses would be associated.

Measures
The online questionnaire was comprised of eight questions and five sections. To measure the constructs, we used previously established and validated scales. The first section contained questions related to luxury car brands that are most relevant to luxury for respondents, and the selection of one luxury car brand with which further questions in the questionnaire would be associated. Then, each respondent was asked whether he or she had purchased a car of the chosen luxury brand. This question was used to determine whether relationships between constructs differ between these two groups of respondents. The second section measured luxury brand perceived value. Vigneron and Johnson's and Berthon et al.'s 7-point Likert-type scales were adopted to capture the luxury brand perceived value, which may be functional, experiential, or symbolic [7-10,38] (Appendix A, Table A1). The third section measured brand attachment and the items were adapted from Park et al. using a 10-point Likert scale [40]. This construct was measured through four items (Appendix A, Table A2). The fourth section measured purchase intention, and Grewal et al.'s 7-point Likert scale, which contains 3 items [66] (Appendix A, Table A3), was used. The fifth section measured consumer vanity, and we used Netemeyer, Burton, and Lichtenstein's 7-point Likert scale [40]. The vanity construct consists of physical concern (5 items), a physical view (6 items), achievement concern (5 items), and an achievement view (5 items) (Appendix A, Table A4). Each factor was measured through four items on the 7-point Likert scale (1-'completely disagree'; 7-'completely agree'). The final section contained socio-demographic questions. A pre-test with 20 respondents was performed in order to ensure conceptual equivalence between the initial English questionnaire and the translated questionnaire in Lithuanian.

Exploratory Factor Analysis
We conducted an exploratory factor analysis (EFA) to evaluate the applicability of scales and to identify the structure of constructs to be researched. Each scale was verified separately using the principal components method of extraction (Verimax rotation). The results of the EFA and the respective Cronbach's alpha values are presented in Table 1. After performing the analysis of the structure of conceptual model constructs, we identified factors that would allow for the modification of original variables. It should be noted that the construct of brand attachment was modified as the factor analysis showed only a single factor; thus, in further analysis, brand attachment was analyzed as a onedimensional construct. For this reason, we revised the H2a, H2b, H2c and H3a, H3b, H3c, H3d, H3e, H3f, H3g hypotheses, which are aimed at the identification of direct effects of brand attachment and its separate dimensions on consumer purchase intention and the evaluation of indirect effects of luxury brand perceived value and its separate dimensions on purchase intention via the mediation of the brand attachment construct and its separate dimensions. Here is a list of the revised hypotheses that were tested during the empirical examination:

Hypothesis 2 ( H2). Brand attachment has a positive effect on purchase intention;
Hypothesis 3a ( H3a). Brand attachment mediates the relationship between luxury brand perceived value and purchase intention in such a way that luxury brand perceived value has a positive effect on brand attachment, which, in turn, has a positive effect on purchase intention; Hypothesis 3b ( H3b). Brand attachment mediates the relationship between luxury brand perceived functional value and purchase intention in such a way that luxury brand perceived func-tional value has a positive effect on brand attachment, which, in turn, has a positive effect on purchase intention; Hypothesis 3c ( H3c). Brand attachment mediates the relationship between luxury brand perceived experiential value and purchase intention in such a way that luxury brand perceived experiential value has a positive effect on brand attachment, which, in turn, has a positive effect on purchase intention; Hypothesis 3d ( H3d). Brand attachment mediates the relationship between luxury brand perceived symbolic value and purchase intention in such a way that luxury brand perceived symbolic value has a positive effect on brand attachment, which, in turn, has a positive effect on purchase intention.

Descriptive Analysis
All atypical values (outliers) in the sample were checked before conducting further analysis. For this purpose, the variables were transformed into standardized z estimates. Values that are considered to be outliers have an absolute z value greater than 2, and extreme outliers are values with an absolute z value greater than 3. The identified extreme outliers were removed from the study sample, and, as such, further analysis was performed with a sample of 505 respondents.
The non-parametric Mann-Whitney U Test was performed to test for differences between two independent groups (in the case of the gender variable and whether the respondent had purchased a car of the chosen luxury brand before ('yes', N = 129 or 'no', N = 376) on measures of luxury brand perceived value, brand attachment, purchase intention, and consumer vanity. A Mann-Whitney U Test revealed that there are statistically significant differences in the scores of luxury brand perceived value (overall construct) (z = −4.40, p = 0.00), luxury brand perceived experiential value (z = −6.72, p = 0.00), brand attachment (z = −6.34, p = 0.00), and purchase intention (z = −10.87, p = 0.00) between the two groups of respondents (with respect to whether or not they had purchased the selected luxury car).
A Mann-Whitney U Test also revealed that there are statistically significant differences in the scores of consumer vanity (overall scale) (z = −3.36, p = 0.001) regarding the view of physical appearance (z = −4.23, p = 0.00) and the view of personal achievements as facets of vanity (z = −2.12, p = 0.034) of men (N = 357) and women (N = 148). It was identified that gender and the fact that the respondent had purchased a car of the selected brand may affect the manifestation of the analyzed constructs; thus, these variables were used as control variables in the multiple linear regression analysis.
A correlation analysis was performed to check for the existence of statistically significant relationships between the analyzed constructs and respondents' age and income. A statistically significant relationship between respondents' age and the following dimensions was identified: luxury brand perceived value (r = −0.097, p < 0.05), purchase intention (r = −0.112, p < 0.05), achievement concern (r = −0.160, p < 0.001), and achievement view (r = 0.126, p < 0.05). A statistically significant relationship between respondents' income and the following dimensions was identified: brand attachment (r = 0.149, p = 0.001), purchase intention (r = 0.170, p < 0.001), physical concern (r = −0.113, p < 0.05), and achievement view (r = 0.331, p < 0.001). Therefore, these variables were used as control variables in the multiple linear regression analysis.
A further correlation analysis ( Table 2) revealed that almost all variables are statistically significantly related to each other (p < 0.001 or p < 0.05). All statistically significant relationships are positive with some differences in extent. A statistically significant relationship was not found between the following constructs: perceived functional value and physical concern, perceived experiential value and purchase intention (thus, H1c is not supported), and purchase intention and physical concern as well as physical view (p > 0.05).

Hypotheses Testing Results
Multiple regression analyses were performed to test Hypotheses H1a, H1b, H1d) and H2 (Table 3). Hypothesis H1a, which states that luxury brand perceived value has a positive effect on purchase intention, was confirmed. After accounting for the control variables (age, income, and previous brand purchase experience), the findings show that luxury brand perceived value (overall score) has a positive and significant effect on purchase intention (β = 0.188, p < 0.000). The absence of a statistically significant relationship between luxury brand perceived experiential value and purchase intention denies the correctness of the application of regression models; therefore, Hypothesis H1c (i.e., luxury brand perceived experiential value has positive effect on purchase decision) is not supported. Next, we performed a multiple regression analysis with purchase intention as a dependent variable and the luxury brand perceived functional and symbolic values as independent variables (age, income, and previous purchase experience were included as the control variables). Hypothesis H1b, which states that luxury brand perceived functional value has a positive effect on purchase decision (β = 0.14, p = 0.003), and Hypothesis H1d, which states that luxury brand perceived symbolic value has a positive effect on purchase intention (β = 0.138, p = 0.003), were confirmed. Brand attachment demonstrated a statistically significant and positive effect on purchase intention (β = 0.378, p < 0.000); thus, Hypothesis H2, which states that brand attachment has a positive effect on purchase intention irrespective of age, income, and the previous purchase of a luxury car, was confirmed.
Aiming to identify indirect effects of luxury brand perceived value and its separate dimensions on purchase intention when this relationship is possibly mediated by brand attachment, and to test Hypotheses H3a, H3b, H3c and H3d, we performed a regressionbased mediation analysis using SPSS PROCESS model No 4 [67]. The obtained results (Table 4) show the existence of a statistically significant effect of luxury brand perceived value on brand attachment (path a; B = 0.258, p = 0.000) and an effect of brand attachment on purchase intention (path b; B = 0.517, p = 0.000).  The total effect of luxury brand perceived value on purchase intention is statistically significant as well (path c, B = 0.087, p = 0.045). It was identified that the bias-corrected bootstrap 95% confidence interval of the indirect effect (a*b) does not include zero (B = 0.133, LLCI= 0.089, ULCI = 0.184), allowing for the conclusion that Hypothesis H3a stands.
H3b, H3c, and H3d were tested using the same PROCESS model No 4. The results of the indirect effect of luxury brand perceived functional value on purchase intention through brand attachment (Hypothesis H3b) are summarized in Table 5. The path between luxury brand perceived functional value and brand attachment is positive and significant (path a, B = 0.212, p = 0.000). Similarly, the path between brand attachment and purchase intention is also positive and significant (path b, B = 0.481, p = 0.000). The analysis shows a statistically significant direct effect of luxury brand perceived functional value on purchase intention (path c'; B = 0.121, p = 0.003). The total effect of luxury brand perceived functional value on purchase intention is statistically significant as well (path c; B = 0.224, p = 0.000). Furthermore, the indirect effect of luxury brand perceived functional value on purchase intention through brand attachment is positive and statistically significant as the bias-corrected bootstrapping 95% confidence interval does not include zero (B = 0.102, LLCI= 0.057, ULCI = 0.155). Thus, Hypothesis H3b stands.  The results of the indirect effect of luxury brand perceived experiential value on purchase intention through brand attachment (Hypothesis H3c) are summarized in Table 6. Luxury brand perceived experiential value has a statistically significant positive effect on brand attachment (path a, B = 0.145; p = 0.001), while brand attachment has a statistically significant positive effect on purchase intention (path b, B = 0.524; p = 0.000). Luxury brand perceived experiential value also has a statistically significant direct effect on purchase intention; however, it is a negative one (path c', B = −0.140; p = 0.000). Nevertheless, the total effect of luxury brand perceived experiential value on purchase intention is not statistically significant (path c, B = −0.064, p = 0.157). As expected, luxury brand perceived experiential value has a statistically significant positive effect on purchase intention via brand attachment (a*b, B = 0.076; bias-corrected bootstrapping 95% confidence interval LLCI = 0.032; ULCI = 0.123). Thus, Hypothesis H3c stands. The results of the indirect effect of luxury brand perceived symbolic value on purchase intention via brand attachment are summarized in Table 7. Luxury brand perceived symbolic value has a statistically significant positive effect on brand attachment (path a, B= 0.327; p = 0.000), while brand attachment has a statistically significant positive effect on purchase intention (path b, B= 0.503; p =0.000). Moreover, the bias-corrected bootstrapping 95% confidence interval does not contain zero, supporting the existence of an indirect effect (a*b, B = 0.164; bias-corrected bootstrapping 95% confidence interval LLCI = 0.116; ULCI = 0.218). Consequently, Hypothesis H3d stands. To test Hypotheses H4 and H5, we performed a regression-based moderation analysis using SPSS PROCESS model No 1. Hypotheses H4 and H5 were not confirmed to be statistically significant, as no connections were found (p > 0.05).

Discussion
This study examined the links between luxury brand perceived value, brand attachment, purchase intention, and consumer vanity. The literature review has revealed that these links are not widely investigated but are important to understanding the reasons why consumers buy goods from luxury brands. This study contributes to the literature on luxury brand value and brand attachment in several ways. First, it enriches the literature by investigating luxury brand perceived value as an antecedent of luxury brand attachment. Second, we added to the literature on the indirect effect of luxury brand value on purchase intention through brand attachment as a mediator. Finally, we enriched the literature on exploring the effect of luxury brand perceived value on brand attachment and the effect of luxury brand perceived value on purchase intentions under the boundary condition of consumer vanity.
As expected, our study found that luxury brand perceived value positively affects purchase intention. Worth mentioning is that separate luxury brand perceived value dimensions influence the purchase intention positively, although differently. The findings show that purchase intention is mostly affected by luxury brand perceived functional value. The effect of perceived functional value has also been identified by other researchers [15][16][17]19]. This confirms that consumers buy luxury brand goods because they believe them to be made with the utmost craftsmanship and be of the highest quality. The factor analysis revealed that the statements 'luxury brand cars are made with extremely high craftsmanship' and 'luxury brand cars are of the best quality' have the highest factor loadings in our study.
The current study's findings may also be attributable to the cultural peculiarities. For example, German consumers place relatively higher importance on luxury brand functional value than consumers in Brazil, France, Hungary, India, Italy, Japan, Slovakia, Spain, and the United States [68]. The geographical proximity of Germany and Lithuania and the relatively low cultural distance may allude to the cross-cultural similarities in consumer preferences. The product category may also explain consumers' functional orientation. Though automobiles are prominent in signalling status, it may also be the case that consumers truly believe in and prioritize the functional value over other dimensions of luxury brand perceived value and consider functional usefulness to be a prerequisite for the other value dimensions to be considered.
However, within our sample, luxury brand perceived experiential value was not related to purchase intention. As anticipated, luxury brand perceived symbolic value had a statistically significant positive effect on purchase intention. According to Tynan et al., these luxury brand perceived value dimensions allow consumers to differentiate between luxury brands, but, in general, consumers only focus on high functional value, which partially explains the obtained results [14].
The results support the hypothesis that brand attachment has a direct positive effect on purchase intention, and this finding is in line with other research [16,17,[20][21][22][23]. Previous studies note that the brand is important to consumers only in cases when they are attached to the brand.
While testing the indirect effect of luxury brand perceived value on purchase intention via brand attachment as the mediator, it was identified that luxury brand perceived value and its separate dimensions have a statistically significant positive indirect effect on purchase intention. The higher the luxury brand perceived value, the higher the brand attachment, which, in turn, strengthens the purchase intention. Our findings reveal that purchase intention (via brand attachment) is most strongly affected by luxury brand perceived symbolic value. This suggests that consumer purchase intention is mostly affected by a brand's ability to convey to the consumer desired success, leadership, and powerrelated values. Such results are in line with the notion that the primary motivation for luxury consumption lies in the symbolic benefit luxury brands are capable of providing [34]. The long-lasting consumer preference for luxury stems from the fundamental human desire for status [69]. Status, thus, is receptive to the meanings consumers ascribe to it. Cur-rent market developments show that even pro-environmental behavior and investing in parenting are being exhibited as high-status symbols [29].
Finally, we examined the effect of consumer vanity on the relationship between luxury brand perceived value and purchase intention and between luxury brand perceived value and brand attachment. We found that consumer vanity does not have a statistically significant effect on the mentioned relationships. Contrary to expectations, consumer vanity did not function as a moderator within our sample. These results are not in line with Hung et al.'s and Cheah et al.'s findings, in which a moderating effect of separate consumer vanity dimensions on the relationship between luxury brand perceived value and purchase intention was found [16,18]. Our results are in contrast to the findings of research in related domains. For example, [39] found that the relationship between ideal self-congruence (which can be attained through luxury brand value) and brand attachment is conditional and is present only under the condition of low self-esteem (vanity, being a component of narcissism, presumably reflects overcompensation for low self-esteem). Our results are also different from those of [21], which found that the effect of ideal self-congruence on luxury brand attachment is strengthened by self-esteem. The inconsistency in findings points to the need for further research.

Conclusions, Further Directions, and Implications
In conclusion, luxury brand perceived value is positively related to purchase intention, but the strength of the relationship depends on the separate dimension of perceived value. Furthermore, luxury car brand attachment represents a positive effect on purchase intention among brand-attached consumers. In addition, our research suggests that consumer vanity may moderate the link between luxury brand perceived value and purchase intention, as individuals seeking physical attractiveness and recognition from others are more likely to purchase luxury brands and emphasize that value. However, in the case of Lithuanian consumers, vanity was not found to have a moderating effect on the relationship between the mentioned linkages.
Moreover, the current study has research limitations that could lead to further research directions. Firstly, we used a non-probability sampling and cross-sectional research design, which prevents claims of causation. As such, we cannot present generalizable conclusions about the population. Thus, the development of a causal research design based on the findings of the current research would provide valuable data related to the investigated links among luxury brand perceived value, brand attachment, purchase intention, and consumer vanity.
According to [40], brand attachment is to be analyzed through two dimensions: brand prominence and brand self-connection. However, after the factor analysis, brand attachment was considered to be a one-dimensional construct. According to Park et al.'s recommendations, the four-item measurement scale of brand attachment was used instead of a 10-item scale [40]. Further research could use all 10 items of the brand attachment scale.
Regarding the results for consumer vanity, the standard deviation of the scale was the lowest compared with the scales used to measure other constructs. It is possible that the respondents found the questions too personal and were reluctant to answer truthfully.
In addition, it is likely that consumer vanity (and its dimensions) could have a differential effect on the relationship between the individual dimensions of luxury brand perceived value and brand attachment and between the individual dimensions of luxury brand perceived value and purchase intention. Thus, researchers may also include these links in further research.
Based on Hung et al. and Cheah et al., brand attachment and purchase intention may be affected by both luxury brand perceived value and social factors that could be included in further research [16,17]. In addition, as we have only focused on purchase intention in this study, further research could examine consumers' willingness to recommend a brand and pay a price premium [11]. Moreover, it has been found that consumers are willing to purchase counterfeit luxury brand products [11,21,53,70]. Finally, a high luxury brand perceived value [11], strong brand attachment, and material values [21], which are closely related to achievement vanity [54,55,71], have negative effects on consumer intention to purchase counterfeit products. Further research could compare genuine luxury brand products with counterfeit products.
In addition, this study was conducted in the context of luxury cars, and the research examined focused mainly on luxury fashion brands. Moreover, the developed conceptual model could be tested in other major categories of luxury goods, such as jewellery, cosmetics, wine, hotels, tourism, and private banking [65], as different research results are expected depending on the selected product category [17,19,72].
The findings of this study have important implications for luxury car marketers in Lithuania. The results highlight the significant effect of a luxury brand's perceived social value on purchase intentions, so it would be worthwhile emphasizing the quality, craftmanship, and superiority of the luxury car brand in order to attract new consumers and increase sales. The study also revealed that purchase intention (via brand attachment) is most strongly affected by luxury brand perceived symbolic value. Hence, marketers should emphasize the brand's ability to convey consumer success, leadership, and power in order to retain existing consumers.
Strongly disagree (1)-strongly agree (7) Vanity: physical view People notice how attractive I am. My looks are very appealing to others. People are envious of my good looks. I am a very good-looking individual.
My body is sexually appealing. I have the type of body that people want to look at.
Vanity: achievement concern Professional achievements are an obsession with me. I want others to look up to me because of my accomplishments. I am more concerned with professional success than most people I know. Achieving greater success than my peers is important to me. I want my achievements to be recognized by others.

Vanity: achievement view
In a professional sense, I am a very successful person. My achievements are highly regarded by others. I am an accomplished person. I am a good example of professional success. Others wish they were as successful as me.