Examining Structural Relationships among Night Tourism Experience, Lovemarks, Brand Satisfaction, and Brand Loyalty on “Cultural Heritage Night” in South Korea

The night-time economy is an important part of the urban economy and contributes significantly to modern cities’ GDP. The development of night tourism is one of the crucial means to enrich and prosper the night-time economy. Recently, as a popular topic of sustainable development, night tourism has received extensive attention. However, little attention has been paid to night tourism, especially from the emotional perspective of tourists. Furthermore, discussions on how and why tourists become interested in night tourism are still lacking. To fill the research gap, based on the theory of experience economy, we used the concept of lovemarks to explore the influence of tourists’ tourism experience and lovemarks on their brand satisfaction and brand loyalty. A self-administered questionnaire was completed by 487 tourists of “Cultural Heritage Night”, a night tourism brand in South Korea. The results indicate that tourists’ entertainment and educational experience significantly influence their lovemarks (both of brand love and respect), and esthetic experience only significantly influences brand respect. Furthermore, the influence of tourists’ lovemarks on brand satisfaction and loyalty is also validated. To retain the sustainable development of night-time economy and night tourism, local authorities and destination managers are recommended to provide night tourism brands (products) with optimal experience effects and entirely emotional and functional attributes.


Introduction
In 2016, the Cultural Heritage Administration of South Korea launched a plan of "the night of cultural heritage" and then built a national night tourism brand named "Cultural Heritage Night." Based on the representative cultural heritage sites and areas of 10 cities in South Korea, it was a product designed for sustainable night tourism that contained eight sections, including night scenery, night road, night history, night book, night talk, night food, night market, and night stay [1]. Since building the "Cultural Heritage Night," the night consumption level of each host city has been effectively activated. For example, the number of tourists has increased from 1.05 million in 2016 to 2.29 million in 2018; the number of listed cultural heritage sites and areas has increased from 10 in 2016 to 27 in 2019, and a total of about 17.5 billion won (around 14.6 million dollars ($1 USD = KRW ₩1199. 36 (as of 28 July 2020))) has been invested to this night tourism brand [2]. The important feature of the on night tourism brands (products)? Secondly, what emotions do tourists generate as a result of experiencing a night tourism brand (product)? Thirdly, how is a tourist's loyalty to the night tourism brand (product) generated and enhanced through their emotions?
Based on the above background and research questions, the purposes of the current study were as follows: Firstly, the theory of lovemarks was used to examine the formation mechanism of tourist's brand loyalty on the mature night tourism brand-"Cultural Heritage Night;" secondly, the structural relationships between tourism experience, lovemarks, brand satisfaction, and brand loyalty were explored; thirdly, based on the results, we further proposed some managerial recommendations on how to improve tourist's night tourism brand loyalty and satisfaction through the understanding of lovemarks and experience, since night tourism had been one of the crucial boosters to promote the sustainable development of economy, society, and environment in the modern cities.

The Sustainable Functions of Night Tourism
Night Tourism is the extension and expansion of regular tourism activities in the daytime. Compared with giving a hurried and cursory glance at tourism sites during the daytime, the leisure and recreational style at night is more conducive to tourists' perceptions of local culture and experience of life style [24]. During night tourism, tourists can go shopping, taste delicious food, visit iconic tourism sites, make social contact with residents, and experience the authentic atmosphere that cannot be perceived in the day [3,[24][25][26]. Therefore, night tourism is an extraordinary approach to show urban development, cultural connotation, and the style and features of residents.
Night tourism has sustainable functions in three aspects: Firstly, night tourism has sustainable economic functions. In the era of the experience economy, night tourism plays an essential role in NTE [6][7][8][9]. The development of night tourism can stimulate consumption and commerce at night, providing extra chances for tourists to experience what they may interest. In this context, the long-term development of night tourism will help to attract more tourists and enhance potential business opportunities [27]. Secondly, night tourism also contributes to the sustainability of society and culture. Although prior studies paid more attention to the adverse effects of nightlife [12,13], for a tourism destination, the development of night tourism further strengthened the content mining and protection of tourism attractions [27]. Furthermore, the relationship between the host and the guest was more harmonious [28]. For the city itself, the extended opening time resulted from night tourism could give their citizens more chances to make short stays or sightseeing in their cities [27]. Thirdly, in the context of environmental protection, night tourism promotes more low-carbon behaviors. For example, it was found that after dark, 81% of tourists used a tube, and 75% of tourists chose to walk before midnight [7]. With the increase of night tourism demand, local governments have further strengthened public transport services, which not only facilitates the travel of tourists, but also reduces potential carbon emissions. Additionally, some night tourism products, like the "Cultural Heritage Night" in South Korea, are designed for merely walking and seeing the tourism sites on foot [29]. While tourists slowly experience cultural heritages, the environmentally friendly idea is also practiced. Generally speaking, night tourism will benefit the sustainable development of the host city from the aspects of economic, socio-cultural, and environmental.
Prior studies of night tourism have tried to emphasize on the related adverse impacts (e.g., violence, crime) [12,14], types of night tourism products or activities (e.g., night markets in Taiwan, night festival, astronomical tourism) [30][31][32][33], and psychological variables (e.g., perceived problems, experience, image, motivation) [24,26,34]. While the above topics have been widely discussed, how night tourism products gain increasing brand loyalty from tourists has been less explored. More specifically, the focus on the tourist's beyond rational brand emotion within night tourism products has also been neglected. Therefore, further exploration of the formation of night tourism brand loyalty by lovemarks is needed to fill these research gaps and provide practical recommendations for the sustainable management of night tourism products.

Brand Satisfaction and Brand Loyalty
The concept of brand satisfaction and loyalty has been widely discussed in academic researches. Brand satisfaction has been regarded as a subjective evaluation result of whether the experience effect of the selected brand has reached or exceeded the expectation, and it can also refer to the overall evaluation of the purchase and consumption experience of the designated brand in a certain period of time [35,36]. Song et al. [15] believed that the core content of brand satisfaction is the consumers' emotional evaluation or pleasure level of a specific brand in the mind. However, Baker and Crompton [37] suggested that brand satisfaction is a psychological and emotional result based on personal experience, regardless of whether psychological expectations can be achieved, but its level of evaluation will affect the success of the brand. As a whole, the mainstream concept of brand satisfaction is mainly based on the comparison between consumers' actual product experience and expectation, emphasizing an individual's mental activities in emotion.
Brand loyalty mainly refers to the consumer's repeat purchasing behavior and commitment to the same brand (over time) [35]. It can also be refined into the positive and significantly tendentious emotions or evaluations on a brand [38]. Also, the induced cognition of buying a specific brand from this commitment will not vary even if the objective matter and market changes [39]. The core of brand loyalty is the loyalty level of consumers to the inclined brand in attitude and behavior when the existing favorite brand and other alternative brands exist together [40]. In this context, brand loyalty can be divided into attitudinal loyalty and behavioral loyalty, and the premise of behavioral loyalty is attitudinal loyalty. More specifically, attitudinal loyalty refers to an attitudinal tendency, which is the preference and repurchasing intention of a consumer for a specific brand [41]. Furthermore, behavioral loyalty refers to the consumer's continuous, repetitive, and systematic purchasing behavior for a specific brand [41]. However, consumers with behavioral loyalty, which can be observed as the direct behaviors, may also be illusory because the repeat consumption may be limited by certain situations [42]. By emphasizing the intentions in an indirect approach, attitudinal loyalty can be operationalized as the repurchasing intentions to represent consumer's authentic ideas regardless of the limited circumstances [42]. Therefore, the research on brand loyalty has developed a trend of exploration based on attitudinal loyalty (consumer's behavior intention) by including different types of intentions, such as repurchasing (reuse) intention and recommendation (word-of-mouth) intention [43][44][45]. The repurchasing (reuse) intention refers to one's judgement on purchasing (reusing) a specific brand of product or service again from the same firm based on his or her realistic status [46]. Furthermore, the recommendation (word-of-mouse) intention interprets customer's willingness to disseminate a positive word-of-mouse [47]. In the context of tourism, as some tourism products and services (brands) are related to the tourism destinations (e.g., the "Cultural Heritage Night" is a night tourism brand but is held in different host cities), the expression of repurchasing intention is usually redefined as revisit intention to show the willingness of tourists to "reuse" the brand of tourism products generated from destinations [48,49]. Thus, in the current study, brand loyalty is used to represent tourist's revisit and recommendation intentions to the "Cultural Heritage Night" in South Korea.
The positive relationship between brand satisfaction and loyalty has been widely discussed in prior studies. Bloemer and Kasper [35] demonstrated that the consumers' satisfaction has a directly positive impact on their brand loyalty. Some empirical studies also regarded brand loyalty as the direct result of brand satisfaction, indicating that the brand satisfaction can contribute to a higher level of brand loyalty [50][51][52]. In the context of tourism, similar results have also been found. Drennan, Bianchi, Cacho-Elizondo, Louriero, Guibert, and Proud [53] found that among the five wine countries of origin, besides Portugal, the relationship between brand satisfaction and brand loyalty is significant and positive within the consumers from Australia, Chile, France, and Mexico. Also, the total effect of the wine brand satisfaction on brand loyalty is higher than other brand-related factors (brand trust and brand love). Nam, Ekinci, and Whyatt [54] explored a partial mediation model through brand equity, brand satisfaction, and brand loyalty in hospitality industry. Compared with the direct paths assessed by the predictors of brand equity, they found that brand satisfaction has the highest influence on hospitality consumer's brand loyalty. Thus, it can be concluded that tourists' brand satisfaction is a positive antecedent of their brand loyalty. The better the brand satisfaction perceived by tourists, the higher their level of brand loyalty will be [55][56][57]. Based on the findings above, the following hypotheses are proposed in the current study: Hypothesis 1 (H1). Tourist's brand satisfaction positively influences their brand loyalty.

Lovemarks
Lovemarks was initially proposed by Kevin Roberts, the president of a world-famous advertising firm named Saatchi and Saatchi. He argued that a brand that all eyes are fixed on should get brand love and brand respect from the consumers at the same time [22]. According to Roberts [22], brand love represented the consumer's feeling and emotion to the brand (emotional attributes), including mystery (customer's aspirations, goals, dreams, stories, and myths on a brand that are beyond rationality and calculation), sensuality (perceptions formed through consumer's five senses: Sound, sight, smell, touch, and taste), and intimacy (the degree of commitment, empathy, and passion that consumers have on a brand). Further, brand respect refers to consumer's perceptions of brand function and performance (functional attributes), including performance (market share, brand value, and the innovation and superiority of brand quality) [16,58], reputation (the actual degree of commitment fulfilling a brand has provided to consumers) [58], and trust (consumer's sense of security in the process of interacting with a brand) [59]. Although the lovemarks express the intense feelings of the consumer for a specific brand, the premise of brand love is brand respect since it is the basis for maintaining a long-term relationship [22,60]. Without brand respect, brand love will be unrealistic [19]. The theory of lovemarks explains why consumers are attached and loyal to a specific brand rather than other ones because their loyalty will go beyond reason when they have love and respect for the brand [60].
Based on the degree of brand respect and brand love recognized by consumers, Roberts [22] redefined four types of the brand: Lovemarks, brands, products, and fads (as shown in Figure 1). The area of lovemarks refers to the brands with high respect and love, which contributes to building the most reliable brand loyalty of, and long-term emotional bonds with, consumers. Then, the area of brands indicates brands with low love but high respect, which is beneficial to make a certain degree of brand loyalty but may fail to facilitate consumers to have emotional connections with the brand. Furthermore, the brands in the area of fads are with high love but low respect, which leads to an unstable level of brand loyalty because the brand may withdraw from the market if a consumer's enthusiasm is fading. Finally, the brands in the area with low love and low respect can only be called "products," which means a weak brand loyalty between consumers and brands. In the context of these types of brands, Song et al. [58] argued that it is undoubtful that Apple (e.g., iPhone, iPad) is a lovemark because consumers have great passions and phrases for its products. However, compared to Apple, Lenovo computers can only be attributed to the area of brands because they just have admired quality and hardware but fail to win enough passion from consumers. Therefore, it is obvious that consumers with a higher level of brand love and respect can have greater emotions and cognitions on the brand. In the current study, the case of "Cultural Heritage Night" can be regarded as a successful brand of lovemarks in the night tourism and festival fields in South Korea (discussed in Introduction). As a national night tourism brand, the content of "Cultural Heritage Night" contains many famous world/nationwide cultural heritages and various recreational activities, providing a historical and enjoyable atmosphere for tourists to experience all along the year in different cities at night. On the one hand, the cultural heritages developed at night can make tourists generate more emotional feelings (e.g., memories for the country's history, mysteries for the buildings, touched five senses by designed lights and activities, etc.). On the other hand, some World Heritage Sites can easily facilitate tourists to gain a high level of reputation and trust in them. Thus, it is necessary to explore how this night tourism brand forms tourist's emotional and functional recognitions, and then, leads to a high level of brand loyalty.  As a high level of lovemarks means that consumers have a close emotional connection and good functional evaluation to a specific brand, their degree of satisfaction and loyalty to the brand will also be stimulated [58]. Lee and Oh [61] explored the relationship between lovemarks, satisfaction, and behavior intention of festival consumers from the perspective of strategic experiential modules and environmental cues. They found consumers with a high level of brand love and brand respect are more likely to get satisfied from the festival and generate repurchasing and recommendation intentions. In the context of the in-flight product, Han, Yu, and Lee [62] demonstrated that passengers' brand love and respect are critical factors in building their behavioral intention in the full-service airline industry. Through a comparative perspective of the predictors (of lovemarks) between traditional media and new media communication in the field of the foodservice industry, Lee [63] argued that brand love and respect of lovemarks have a positive influence on customer's satisfaction and behavior intention, respectively. Shuv-Ami, Vrontis, and Thrassou [64] developed a lovemarks scale for assessing a brand of sports team or club. They suggested that sports fans' brand love and respect are positively related to their brand loyalty. Furthermore, by comparing the full-service and low-cost carriers in South Korea, Han, Yu, Chua, Lee, and Kim [65] found that brand love can significantly influence passengers' repurchase intention (brand loyalty). Therefore, it could be concluded that the more customers feel love and respect from a brand, the higher their level of satisfaction and loyalty will be [15,58,66]. Hence, this study proposes the following hypotheses:

Tourism Experience
The most significant difference between tourism products and non-tourism products is whether consumers participate in the production process, which means that the production process of tourism products must be accompanied by a large number of tourists' participation and experiences [67]. In the era of experience economy in which products and services no longer have the highest economic value, the most popular tourism products must be the one that can bring rich experience to tourists [68]. As the proponent of the experience economy concept, Pine and Gilmore [17] believed that As a high level of lovemarks means that consumers have a close emotional connection and good functional evaluation to a specific brand, their degree of satisfaction and loyalty to the brand will also be stimulated [58]. Lee and Oh [61] explored the relationship between lovemarks, satisfaction, and behavior intention of festival consumers from the perspective of strategic experiential modules and environmental cues. They found consumers with a high level of brand love and brand respect are more likely to get satisfied from the festival and generate repurchasing and recommendation intentions. In the context of the in-flight product, Han, Yu, and Lee [62] demonstrated that passengers' brand love and respect are critical factors in building their behavioral intention in the full-service airline industry. Through a comparative perspective of the predictors (of lovemarks) between traditional media and new media communication in the field of the foodservice industry, Lee [63] argued that brand love and respect of lovemarks have a positive influence on customer's satisfaction and behavior intention, respectively. Shuv-Ami, Vrontis, and Thrassou [64] developed a lovemarks scale for assessing a brand of sports team or club. They suggested that sports fans' brand love and respect are positively related to their brand loyalty. Furthermore, by comparing the full-service and low-cost carriers in South Korea, Han, Yu, Chua, Lee, and Kim [65] found that brand love can significantly influence passengers' repurchase intention (brand loyalty). Therefore, it could be concluded that the more customers feel love and respect from a brand, the higher their level of satisfaction and loyalty will be [15,58,66]. Hence, this study proposes the following hypotheses: Hypothesis 2 (H2). Tourist's lovemarks positively influences their brand satisfaction.

Tourism Experience
The most significant difference between tourism products and non-tourism products is whether consumers participate in the production process, which means that the production process of tourism products must be accompanied by a large number of tourists' participation and experiences [67]. In the era of experience economy in which products and services no longer have the highest economic value, the most popular tourism products must be the one that can bring rich experience to tourists [68]. As the proponent of the experience economy concept, Pine and Gilmore [17] believed that experience occurs when the company intends to use services as a platform and commodities as props to attract consumers in a way that can create unforgettable memories in some specific events. Based on the theory of experience economy, Oh, Fiore, and Jeoung [69] argued that tourist's participation level (active or passive) and participation form (absorption or immersion) could determine their distinct states of tourism experience (as shown in Figure 2): (1) From the perspective of their participation level when participation is more passive, tourists will get entertainment and esthetic experience, and when participation is more active, tourists will get education and escapism experience; from the perspective of participation form, tourists usually "absorb" entertainment and educational experience from tourism products, and immerse themselves in the aesthetic and escapism experience that tourism products bring to them. The "absorb" refers to attracting tourists' attention by introducing experience into their minds, and the "immerse" means tourists themselves become part of the experience [70]. Relevant studies also showed that tourism experience would promote individuals' strong and positive emotional responses, which is the reflection of individuals based on absorption and immersion experience [69,71,72]. Given this, entertainment experience, educational experience, aesthetic experience, and escapism experience are generally regarded as the four dimensions of tourism experience to explore the role and function of experience process between tourists and tourism activities [69,[71][72][73].
Sustainability 2020, 12, x FOR PEER REVIEW 7 of 23 experience occurs when the company intends to use services as a platform and commodities as props to attract consumers in a way that can create unforgettable memories in some specific events. Based on the theory of experience economy, Oh, Fiore, and Jeoung [69] argued that tourist's participation level (active or passive) and participation form (absorption or immersion) could determine their distinct states of tourism experience (as shown in Figure 2): (1) From the perspective of their participation level when participation is more passive, tourists will get entertainment and esthetic experience, and when participation is more active, tourists will get education and escapism experience; from the perspective of participation form, tourists usually "absorb" entertainment and educational experience from tourism products, and immerse themselves in the aesthetic and escapism experience that tourism products bring to them. The "absorb" refers to attracting tourists' attention by introducing experience into their minds, and the "immerse" means tourists themselves become part of the experience [70]. Relevant studies also showed that tourism experience would promote individuals' strong and positive emotional responses, which is the reflection of individuals based on absorption and immersion experience [69,71,72]. Given this, entertainment experience, educational experience, aesthetic experience, and escapism experience are generally regarded as the four dimensions of tourism experience to explore the role and function of experience process between tourists and tourism activities [69,[71][72][73].  [17,69].
Although the theory of tourism experience has been widely examined in the study of various types of tourism, the sufficient discussion of the relationship between tourism experience and tourist's lovemarks is still lacking, especially in the aspect of night tourism brand and the experience economy theory. The empirical study of Zhang and Min [74] was the only one that proved the more and better tourists have entertainment, esthetics, and esthetic experience on the theme park, the higher their love and respect for the brand of the theme park will be. However, based on the brand experience theory of Brakus, Schmitt, and Zarantonello [75] (a similar and popular concept of experience in marketing studies which is classified into sensory, affective, behavioral, and intellectual experiences), some product marketing studies also indirectly explored the relationship between experience and brand love and brand trust. Huang [21] suggested that consumers' experience on the mobile phone brand will directly affect their love and trust in the brand. Bıçakcıoğlu, İpek, and Bayraktaroğlu [76] also demonstrated that consumer's brand experience can effectively predict their love for the brand. Although the indirect studies were originated from different experience theories, they all showed an individual's stimulated reactions and specific experiences with a tangible product. Although the theory of tourism experience has been widely examined in the study of various types of tourism, the sufficient discussion of the relationship between tourism experience and tourist's lovemarks is still lacking, especially in the aspect of night tourism brand and the experience economy theory. The empirical study of Zhang and Min [74] was the only one that proved the more and better tourists have entertainment, esthetics, and esthetic experience on the theme park, the higher their love and respect for the brand of the theme park will be. However, based on the brand experience theory of Brakus, Schmitt, and Zarantonello [75] (a similar and popular concept of experience in marketing studies which is classified into sensory, affective, behavioral, and intellectual experiences), some product marketing studies also indirectly explored the relationship between experience and brand love and brand trust. Huang [21] suggested that consumers' experience on the mobile phone brand will directly affect their love and trust in the brand. Bıçakcıoglu,İpek, and Bayraktaroglu [76] also demonstrated that consumer's brand experience can effectively predict their love for the brand.
Although the indirect studies were originated from different experience theories, they all showed an individual's stimulated reactions and specific experiences with a tangible product. Given this, this study argues that the more excellent tourism experience tourists generated from the night tourism product (brand), the more likely they will have love and respect for it. Therefore, this study proposes the following hypotheses: Hypothesis 4 (H4). Tourism experience positively influences tourist's lovemarks.
Based on the contents and relationships between brand satisfaction, brand loyalty, lovemarks, and tourism experience discussed above, the current study proposes the theoretical framework to explore the formation mechanism of night tourism brand loyalty (as shown in Figure 3). Given this, this study argues that the more excellent tourism experience tourists generated from the night tourism product (brand), the more likely they will have love and respect for it. Therefore, this study proposes the following hypotheses:

Hypothesis 4 (H4). Tourism experience positively influences tourist's lovemarks.
Based on the contents and relationships between brand satisfaction, brand loyalty, lovemarks, and tourism experience discussed above, the current study proposes the theoretical framework to explore the formation mechanism of night tourism brand loyalty (as shown in Figure 3).

Case Study
As of 2019, there have been 27 cities and regions in South Korea listed in the brand of "Cultural Heritage Night," and 36 cities and regions will compete for the supplementary quotas to be filled in 2020 [2,77]. As a large number of new cities and regions have joined in the past two years, it is difficult to measure the authentic evaluation of the "Cultural Heritage Night" by tourists who may have more "expectations" for new tourism activities in such a short period. Therefore, this study will only select more representative ones of the 10 cities and regions firstly listed in 2016 as the case studies. Specifically, according to the popularity of relevant cities and regions, the content of night tourism, and the utilization level of cultural heritage, the following four cities and regions are finally selected as the case studies (as shown in Table 1).

Case Study
As of 2019, there have been 27 cities and regions in South Korea listed in the brand of "Cultural Heritage Night," and 36 cities and regions will compete for the supplementary quotas to be filled in 2020 [2,77]. As a large number of new cities and regions have joined in the past two years, it is difficult to measure the authentic evaluation of the "Cultural Heritage Night" by tourists who may have more "expectations" for new tourism activities in such a short period. Therefore, this study will only select more representative ones of the 10 cities and regions firstly listed in 2016 as the case studies. Specifically, according to the popularity of relevant cities and regions, the content of night tourism, and the utilization level of cultural heritage, the following four cities and regions are finally selected as the case studies (as shown in Table 1).

Questionnaire Development
Based on the requirements of DeVellis [78] and Churchill and Gilbert [79] on questionnaire development and dimension management, this study developed a self-administered questionnaire for empirical research on the relationship between brand loyalty, brand satisfaction, lovemarks, and tourism experience. The self-administered questionnaire consisted of five sections: Firstly, the tourism experience section, which had four dimensions (educational experience, entertainment experience, aesthetic experience, escapist experience) with 12 indicators, was adopted from the theory of experience economy and its application in empirical tourism studies to measure the immersion and absorption state of Korean tourists in the "Cultural Heritage Night" experience [17,[69][70][71][72]. Secondly, the lovemarks section, which had two dimensions (brand love and brand respect) with 6 indicators, was adopted from the theory of lovemarks demonstrated by Roberts [22,60] to measure Korean tourists' emotional connection with, and their evaluation of, functional performance on the "Cultural Heritage Night" after they experienced it [64,80]. Thirdly, the brand satisfaction section had 3 indicators adopted from Yoon et al. [55] and was developed to measure tourists' brand satisfaction with "Cultural Heritage Night". Fourthly, the brand loyalty section had 3 indicators adopted from to explore tourists' intention to revisit, recommend, and give good word-of-mouth toward the "Cultural Heritage Night" [43,44]. Finally, the demographic profile section was composed of gender, age, occupation, marital status, education level, and monthly income level adopted from Song et al. [72]. In the first four sections, all the indicators were measured on a five-point Likert scale ranging from 1 = "strongly disagree" to 5 = "strongly agree."

Sampling and Data Collection
A pilot study was conducted to ensure the quality of empirical research. Since the indicators in this study were all derived from English-speaking countries, and the self-administered questionnaire needed to be translated into Korean, we invited a Korean doctor who majored in leisure service at Pai Chai University (in South Korea) to translate the original English survey into Korean. Then, following the guidelines of the back-translation method [81], two Korean professors who majored in tourism management at Pai Chai University were invited to check whether the translation and terminology expressions of the Korean self-administered questionnaire were accurate. Then, on December 5, 2017, this study randomly selected 20 students from Pai Chai University, who had participated in the "Cultural Heritage Night" at Jeong-dong, Seoul, on October 28, 2017, for the pilot study with the revised self-administered questionnaire. Based on their feedback on language understanding, expression clarity, and the length of the survey, the self-administered questionnaire was revised again, and the final edition was prepared for the main study.
The main study was conducted at the selected four "Cultural Heritage Night" destinations (Buyeo County, Seoul, Jeonju, and Daegu) at different times in 2018 (see Table 1). One hundred and fifty questionnaires (a total of 600 questionnaires) were distributed to each destination. Furthermore, the investigators, who majored in leisure service at Pai Chai University, were all master and doctoral candidates with excellent Korean communication ability and relevant professional backgrounds. Finally, 523 samples were collected. After the elimination of invalid samples (respondents who gave the same evaluation (points) to all the indicators, or questionnaire existed missing values), 487 valid samples were retained. When using the structural equation model, it is suggested that acceptable sample size should be more than 400 if the population size exceeded 5000 [82], or each indicator matches at least 5-10 samples [83,84]. As the retained sample size was 487 (>400) and with 24 Likert styled indicators (487 > 24 × 10 = 240), the retained samples were acceptable for the subsequent process of data analysis.
Podsakoff, MacKenzie, Lee, and Podsakoff [85] a common method variance (CMV) might exist, especially in behavioral studies, when hypotheses between different operationalized constructs were discussed. The reason is that the antecedent variables of behavioral concepts often had similar contents. In this context, Podsakoff and Organ [86] recommended verifying the issue of CMV through Harman's single factor test. Harman's single factor test had been well examined in tourism studies [87,88]. The test is achieved by including all the constructs in one's theoretical framework to have a non-rotated exploratory factor analysis (EFA). If the result of EFA has only one common factor or two or more common factors are found, and the rate of these common factors' variance explained to account for more than 50%, CMV exists, and the theoretical framework should be revised [85,86,89]. In this study, after the non-rotated EFA, seven common factors (eigenvalues were all greater than 1) were extracted, and the variance explained of the first common factor accounted for 35.98% (less than 50%) of the accumulative extracted variance (out of 79.49%), indicating that there was no CMV issue within the theoretical framework and the data.

Data Analysis
In this study, Statistical Product and Service Solutions 24.0 (SPSS, IBM, Armonk, NY, USA) and Analysis of Moment Structures 24.0 (AMOS, IBM, Armonk, NY, USA) were used to analyze the data step by step. SPSS 24.0 was used to (1) analyze the respondents' demographic profiles by using frequency analysis, (2) measure each construct's internal consistency through the cutoff criteria of their Cronbach's alpha values, (3) calculate the means of each construct by using descriptive analysis, and (4) examine the CMV by using EFA. Based on the two-step guidelines of the structural equation model (SEM) [90], AMOS 24.0 with maximum likelihood (ML) method was used to generate the necessary fit indices of measurement model (also known as the confirmatory factor analysis, CFA) and structural model. The reliability, convergent validity, and discriminant validity of the measurement model were tested through CFA. Finally, the path coefficients of each construct's relationships were also tested under a 95% confidence interval.

Measurement Model
In SEM, it is suggested that the normality assumption should be examined before the measurement and structural model [91]. If the Mardia's normalized coefficient of multivariate normality, which is represented as multivariate kurtosis in AMOS, is lower than 5, the normality assumption is not violated. However, through the calculation of AMOS 24.0, the multivariate kurtosis of the current study was 53.787 (>5), indicating a multivariate non-normal distribution. In AMOS, Hancock and Liu [92] suggested that the bootstrap method is good at managing non-normal distribution in the estimation of measurement and structural model. They argued that the bootstrap method could re-estimate the standardized errors (Boot SE) of each parameter by fixing all the paths of pairs of variables. It was also suggested that the bootstrap ML (maximum likelihood) and bias-corrected 95% confidence intervals (CI) should also be applied in the bootstrap method in AMOS [91,93,94]. Additionally, based on some tourism studies using the bootstrap method [88,[95][96][97], the current study chose 10,000 resamples for the bootstrap method. The results of the fit indices indicated that all the indicators corresponded well to the construct to which they belong. The external fitness of the measurement model was acceptable with Chi-square  Table 3, except for the first indicator of brand respect (0.577 and 0.332), all the factor loadings and squared multiple correlations (SMC) of for each construct's indicator were higher than 0.7 (ranging from 0.740 to 0.934) and 0.5 (ranging from 0.548 to 0.873), respectively, showing the convergence of each indicator was well formed on its construct [84].
The convergent validity was also examined through average variance extracted (AVE), Cronbach's α, and composite reliability (CR). As shown in Table 4, all of the AVE values (along the diagonal) of each construct exceeded 0.5 (ranging from 0.519 to 0.816), indicating the good average amount of variance in indicators that each construct tried to specify [101]. All of the Cronbach's α values of each construct were high than 0.7, showing good reliability [102]. Then, all of the CR values of each construct also exceeded 0.6 (ranging from 0.761 to 0.930), indicating the good internal consistency of each construct [103,104]. Therefore, the convergent validity had been well verified by the approaches of factor loadings, AVE, and CR. The discriminant validity was then identified by comparing the AVE and the Squared Inter-construct Correlation coefficients (SIC) of the pairs of constructs [105]. All the AVE values (along the diagonal) were higher than SIC values (outside the parenthesis and above the diagonal), showing a tenable discriminant validity.

Conclusions
In the era of the experience economy, consumers have shifted from consumption of products or services to emotional and perceptual experience of products [17,70]. As an emerging element of the experience economy, the night-time economy (NTE) is gradually becoming a new tool for cities to promote sustainable urban development [6,7]. Also, as a new tourism trend, night tourism plays an important role in realizing the prosperity of the night economy. Although night tourism can further activate the experience economy and the NTE, little research attention has been paid to the related topics. Given this, based on the theory of experience economy and the night tourism brand "Cultural Heritage Night" in South Korea, the current study used the concept of lovemarks as the emotional and cognitive response to night tourism experiences. It then explored how tourists could generate brand satisfaction and brand loyalty through these tourism experiences and lovemarks.

Theoretical Implications
The findings are partially consistent with prior studies that tourism experience could positively

Conclusions
In the era of the experience economy, consumers have shifted from consumption of products or services to emotional and perceptual experience of products [17,70]. As an emerging element of the experience economy, the night-time economy (NTE) is gradually becoming a new tool for cities to promote sustainable urban development [6,7]. Also, as a new tourism trend, night tourism plays an important role in realizing the prosperity of the night economy. Although night tourism can further activate the experience economy and the NTE, little research attention has been paid to the related topics. Given this, based on the theory of experience economy and the night tourism brand "Cultural Heritage Night" in South Korea, the current study used the concept of lovemarks as the emotional and cognitive response to night tourism experiences. It then explored how tourists could generate brand satisfaction and brand loyalty through these tourism experiences and lovemarks.

Theoretical Implications
The findings are partially consistent with prior studies that tourism experience could positively influence tourists' lovemarks [74]. Among the four dimensions of tourism experience, entertainment experience had the most substantial influence on brand love (β = 0.679), and educational experience had the strongest influence on brand respect (β = 0.363). The findings indicated that the more entertainment and educational experience tourists could generate from the "Cultural Heritage Night," the more likely they would love and respect the night tourism brand. However, contrary to the findings of Zhang and Min [74], they found that educational experience could not influence tourists' lovemarks. The possible explanation for this could be related to the research object. As their study focused on the theme park's brand in South Korea, it paid more attention to its entertainment attribute. Furthermore, generally, the educational experience is not the core content in a theme park, while the "Cultural Heritage Night" in this study is composed of various traditional cultural heritages in South Korea. As cultural heritage is often entirely educational and enriches the tourist's sense of cultural satisfaction and identity [106], the educational experience should play an essential role in building tourists' emotional and cognitive responses.
Furthermore, escapism experience was found to be not related to the two dimensions of lovemarks. The possible explanation for the non-significant relationship between escapism experience and lovemarks could be referred to as another similar study that focused on the Incheon Asian Games researched by Song et al. [72]. They argued that the reason that tourist's escapism experience does not significantly influence their emotional perceptions might be related to the seemingly close to life Asian Games. Since South Korea has hosted a large number of international events, the Asian Games is not something far from the realm of everyday life, which reduces the effect of the respondents' sense of escapism experience. Similarly, for a long time, South Korea has attached great importance to the protection and development of cultural heritage, and the location of "Cultural Heritage Night" in selected cities is mainly based on the cultural heritage in urban blocks, so these heritages are not unfamiliar to night tourism tourists who are mainly dwellers. Additionally, interestingly, there was no significant influence of esthetic experience on brand love. The possible explanation can be attributed to the theory of the experience economy. In this context, tourists' esthetic experience on "Cultural Heritage Night" is a passive immersion. As the experience of night tourism is short-lived, an esthetic experience that is passive and requires immersion is difficult to generate sufficient mystery, sensuality, and intimacy (emotions within brand love) for night tourism brands without initiative and time.
Findings also suggested that brand love and brand respect, derived from lovemarks, were the positive driving factors of brand satisfaction and brand loyalty. Within the two dimensions of lovemarks, brand love had a higher influence on brand satisfaction (β = 0.534), while brand respect had a better influence on brand loyalty (β = 0.432). These results are in line with the findings of Lee and Oh [61] that the brand love and brand respect of catering product consumers positively influence their brand satisfaction and the conclusions of Giovanis and Athanasopoulou [42] and Han et al. [62] that consumers' brand love and brand respect could positively shape their brand loyalty. The findings above show that when tourists make a proper evaluation of the night tourism brand (after they experience it), which can be composed of feeling and emotion (brand love), and function and performance (brand respect), their level of satisfaction with, their recommendation intention and repurchase intention to, and word-of-mouth on the night tourism brand will be enhanced.
Brand satisfaction was found to be directly and indirectly related to brand loyalty. Consistent with prior studies [35,50,55], tourists' brand satisfaction can actively promote the formation of brand loyalty (β = 0.269). Furthermore, brand satisfaction can also be an indirect construct to provide additional paths between brand loyalty and brand love (β = 0.144) and brand respect (β = 0.054), respectively. The results are consistent with Lee [63] that for the brands of new and old media, the influences of consumers' brand love and brand respect on brand loyalty can be indirectly achieved through brand satisfaction. These results indicate that tourists with a high level of brand satisfaction will also show excellent brand loyalty. Furthermore, tourists' brand love and brand respect for night tourism brand can contribute to their brand loyalty through brand satisfaction.
In summary, the theoretical contributions in this study are concluded as follows: Firstly, although NTE is a hotspot in worldwide society, little attention has been paid to the research field, especially in the field of tourism management. The current study fills this research gap by conducting an empirical study on a national night tourism brand ("Cultural Heritage Night") in South Korea. Secondly, based on the theory of experience economy and lovemarks, our findings contribute to understanding how and why tourists' brand loyalty is generated in night tourism activities by including the structural relationships between tourism experience, lovemarks, brand satisfaction, and brand loyalty. Thirdly, this study is a response to calls for considering consumers' emotions in determining their decision-making process [58]. As a concept for showing consumers' love and respect for a brand (product), lovemarks has yet to be discussed in the relationships between experience, brand satisfaction, and brand loyalty in the field of night tourism and its related brand. The findings in this study emphasized that lovemarks plays a decisive role in shaping tourists' night tourism decision-making. Fourthly, night tourism has been seen as a new booster for the sustainable development of modern cities, as it extends the "service" hours of destination cities. The revitalization of cultural heritage also provides new ways of transmission and continuity for sustainable urban development. This study provides a logical analysis process for enhancing tourists' emotions (brand love), identification (brand respect and brand satisfaction), and adhesion (brand loyalty) on night tourism products by investigating a cultural-heritage-themed night tourism brand. It adds theoretical support for further expanding the boundaries of the concept of sustainable development.

Managerial Implications
Based on the above theoretical findings, some policy recommendations are suggested to enhance tourists' lovemarks, brand satisfaction, and brand loyalty on the night tourism brand (product). First of all, in the management process of night tourism products, especially for the cultural-heritage-themed ones, it should be noted that lovemarks mainly contain emotions (brand love) and cognitions (brand respect). Destination managers should know the actual level of tourists' various cognitions (e.g., trust, performance, and reputation) and emotions (e.g., sensuality, mystery, and intimacy) of night tour brands well through regular visits and surveys to improve the quality of, and ensure the sustainable development of, night tourism brands (products). For example, the Cultural Heritage Administration of South Korea has designed eight sections to enhance the sensuality, intimacy, and performance of "Cultural Heritage Night," including night scenery, night road, night history, night book, night talk, night food, night market, and night stay [1].
Furthermore, destination managers need to understand the four dimensions of tourism experience under the experience economy. The findings suggest that tourists' entertainment experience and educational experience positively influence their lovemarks (both brand love and brand respect), and the influence of esthetic experience on brand respect is also examined. Therefore, more attention should be paid to product polishing in the aspects of entertainment, esthetic, and educational. For example, among the four selected "Cultural Heritage Night" cases in this study, activities related to Korean history and the national independence movement have achieved an excellent educational experience. Hanbok Experience, Cross-cultural Experience, and Handicraft Making have generated entertainment experience. Also, the Cherry Blossom Night Walk, Light Show, and Architectural Lantern Tourism also lead to esthetic experience. For night tourism destinations with cultural heritage resources, the appropriate use of the relevant type and content of the tourism sites will contribute to the generation of the tourism experience.
Additionally, destination managers of night tourism brand (product) should mainly focus on two aspects to establish a stable brand loyalty owned by tourists. The first aspect is to build high-quality brand loyalty by activating good lovemarks. For example, local authorities can embed heritage conservation and practical education in night tourism activities with cultural themes. In this way, essential knowledge for protecting these cultural (heritage) sites can be promoted for the public. Furthermore, based on big data technology, some travel technology companies can make efforts to collect tourists' behavioral preferences of night tourism (under the premise of legality) through highly participatory experiential activities (e.g., bonus, such as coupons or small gifts, can be prepared for tourists to stimulate their participation), which can not only deepen the emotional connections between tourists and night tourism brand, but also serve as the basis for improving the content of a product. The other aspect is to realize the promotion effect of tourists' lovemarks on their brand loyalty through brand satisfaction since the findings show that brand satisfaction plays an indirect role in the relationship between lovemarks and brand loyalty. For example, destination managers can use popular social media tools, such as TikTok and Instagram, to promote night tourism activities. Creating relevant topics to increase the audience's interest can also be a valid option. The interaction and participation between tourists and night tourism brands can be increased to improve their overall satisfaction on night tourism, indirectly contributing to brand loyalty.
Although night tourism is now widely discussed and embraced around the world (e.g., Festival of Lights in Lyon, France (Fête des Lumières), Pink Night in Romagna, Italy), well-known night tourism brands are relatively rare. The "Cultural Heritage Night" in this study can be seen as an emerging brand of night tourism focused on cultural heritage sites. The findings of this study shed light on countries and cities with cultural heritages that are interested in developing night tourism. More importantly, the process and approach in which the night tourism brand (the "Cultural Heritage Night") is developed are critical for the sustainable development of the tourism destination. The United Nations, Educational, Scientific, and Cultural Organization (UNESCO) argued that if appropriately managed, world heritage properties, which are important travel destinations, have significant potential impact for local economic development and long-term sustainability [107]. Furthermore, night tourism offers heritages the ability to present heritage properties, and also a means to realize community benefits through sustainable use [108]. In the context of these relationships between heritage and sustainable tourism, the sustainability of night tourism is proven by three aspects. First of all, these cultural heritage sites are less expensive to revitalize and use at night. For example, the cultural heritage sites in this study are also regular tourism sites during the day. The development of night tourism only requires visitors to daily tourist sites by installing lights or using the existing urban lighting system in the surrounding area. It not only extends the service hours of the tourism sites, but also expands the economic benefits, which makes the tourism sites sustainable over time. Furthermore, the development of night tourism is also vital for the destination's social, cultural, and environmental sustainability. For destination societies, night tourism provides new leisure and recreational options for residents and tourists, furthering their experience of a better life and contributing to the enhancement of the city's image. In the context of cultural sustainability, the essence of night tourism development is the revitalization of cultural heritage, contributing to its preservation, education, and transmission. These benefits can be proven by the proper evaluation (mean values) of tourism experience, lovemarks, brand satisfaction, and loyalty in this study (in Table 3). Finally, night tourism development is equally beneficial to the sustainability of the destination environment. For example, the "Cultural Heritage Night" in Korea generally requires tourists to walk through the historic and cultural districts that are strung together from various cultural heritage sites. This method reduces the use of public and private transport and potentially reduces the corresponding carbon emissions level.

Limitations
There are still some limitations in this study. Firstly, the theoretical model of this study needs to be discussed and validated in various types of tourism resources and destination countries (cities) because the cases of this study are all in Korea and there are some differences among countries (cities) in terms of types of tourism resources, national wealth, tourism development policies, democracy, and civic values [88]. Secondly, this study only explored how tourists develop the lovemarks for the night tourism brand from an experience economy perspective, and did not explore the direct influence of the tourism experience on brand satisfaction and loyalty. Thus, this study calls for more attentions on exploring other antecedent variables that potentially influence the formation of lovemarks, and to discuss whether tourist's lovemarks acts as an effective mediator between other antecedent variables and brand satisfaction, and loyalty. These explorations will help the researcher to longitudinally understand tourists' behaviors of night tourism brands (products). Thirdly, as this study is the first to discuss tourists' emotional and functional evaluation on night tourism brand by using lovemarks, and its main aim is to illustrate the importance of lovemarks. Thus, the operationalized constructs of lovemarks are still not sufficiently comprehensive. Based on the studies of Shuv-Ami et al. [64] and Cho et al. [80], lovemarks were operationalized into two dimensions (brand love and brand respect). However, this operationalization may not be sufficient to show the detailed emotional (mystery, sensuality, and intimacy) and functional (performance, reputation, and trust) attributes of lovemarks [15,58]. Therefore, based on this theoretical model, multidimensional constructs of lovemarks or higher-order models could be used to further explore the effects of various attributes of lovemarks. Finally, this study is an exploratory analysis to explain tourists' experiences, emotions, and behaviors towards the night heritage tourism brand. Therefore, this study selected generic variables (terms) that have more legitimacy in quantitative research. However, it remains to be further discussed whether the use of these generic variables may impose limitations (pre-determined) on cultural heritage that has characteristics of authenticity, uniqueness, and the local culture they represent. For example, the use of generic variables is better at demonstrating the commonalities of heritage but not necessarily conducive to demonstrating its uniqueness. Therefore, the further development and selection of variables that better reflect the uniqueness of the target case should be considered for future relevant research.