The Influence of Emotional Intelligence and Cultural Adaptability on Cross ‐ Cultural Adjustment and Performance with the Mediating Effect of Cross ‐ Cultural Competence : A Study of Expatriates in Taiwan

This study examines the influence of antecedents on cross‐cultural competence and cross‐ cultural adjustment as well as the mediating role of cross‐cultural competence for the influence of cultural  adaptability  on  cross‐cultural  adjustment  and  expatriate  performance.  The  partial  least squares structural equation modeling technique was adopted to analyze the data from a survey of 240 expatriates working in Taiwan. The results confirm the positive effect of emotional intelligence and cultural adaptability on cross‐cultural competence and of emotional intelligence and cross‐cul‐ tural  competence  on  cross‐cultural  adjustment.  Moreover,  the  findings  reveal  a  highly  valuable milestone insight into the role of cross‐cultural competence regarding their competency to foster the indirect influence of cultural adaptability on cross‐cultural adjustment and expatriate performance in culturally diverse settings. Given that previous research has rarely identified the mediating role of cross‐cultural competence in improving cross‐cultural adjustment and expatriate performance, these findings could be highly beneficial for academics to conduct further validation and profes‐ sional human resource managers in recruiting and managing expatriates.


Introduction
The trend of globalization and the foundation of a borderless economy have generated imperative demands and requirements for individuals concerning their ability to work not only at local businesses but also at multinational corporations. The hiring or sending of expatriates for employment overseas is always a matter of concern and a top priority for both practitioners and researchers. Proceeding from the need to find new partners and customers, firms have to expand production and business activities in different areas to achieve profit targets. In 2016, a major investigation in a special report by hrmagazine.co.uk indicated that global mobility assignments have increased by 25% in the past decade-and it predicted a further 50% growth in international assignments by 2020 [1]. According to Ariss and Henry [2], 96 million is the number of individuals that is forecasted to move from developing countries to more developed countries for the period 2010-2050. Approximately 80% of mid-size and large enterprises are currently sending professionals abroad, and the remainders are planning to increase the number of expatriates and overseas missions [3]. Consequently, cross-cultural competence plays an important role in enhancing the success of expatriates who have a crucial influence on the sustainable development of the organization as well as the success of international business missions [4][5][6].
However, it has been reported that most of these expatriates initially have difficulty in conducting themselves correctly and efficiently in the new culture when they are sent overseas [7]. Hofstede [8] argued that individuals' cultural values can be measured by power distance, uncertainty avoidance, individualism, masculinity, and long-term orientation. People in different countries may perceive cultural values differently, which may result in diverse ways of thinking and behaving [9]. Business communications and interactions between expatriates and host country employees often fail due to cultural differences and a shortage of core competence to handle such differences. Takeuchi et al. [10] indicated that one of the most common explanations by foreigners for terminating expatriate missions earlier than planned is poor adjustment and performance. Therefore, in order to improve expatriate's cross-cultural adjustment and performance, cultural differences and specific host-country national values and standards maintain crucial features that should not be ignored by expatriates [11].
Taiwan is considered an attractive place for foreign direct investment because its economy benefits from regional economic vitality, it is a destination with high expenditure capacity, and it accords eminence to the high-tech industry. Taiwan has built up one of the most developed high-tech markets worldwide due to its advanced products, availability of resources and assets, and specialized human capital resources. Many Taiwanesebased high-tech companies have become the largest global suppliers of computer chips, semiconductors, personal computers, monitors, accessories, and circuit boards [12]. In addition, Taiwanese culture is a mixture of Confucian Chinese and indigenous Taiwanese cultures. Prior scholars have identified some significant differences between Taiwanese culture, Chinese culture, and Western cultures [9,13,14]. Regarding expatriates facing intercultural issues in their daily lives and their jobs, Taiwan provides a good environment for implementing the investigation about factors that can influence expatriate's success.
The research literature has demonstrated that cross-cultural competence has been considered as emerging attention over the last ten years [4,15]. Both scholars and managers in the field of international business have emphasized that cross-cultural competence is an essential ability to avoid those failures in multinational corporations [4]. It is indicated that when expatriates lack cross-cultural competence, they cannot adjust to the new environment and achieve the targets and goals of their assignments [15]. These problems lead to uncertain feelings, personal and professional stress, frustration, and confusion, along with causing differences in behavioral expectations and performance [16,17]. Accordingly, prior researchers paid increased attention to the exploration of potential aspects and antecedents of expatriate cross-cultural competence such as Bartel-Radic and Giannelloni [4], Johnson et al. [18], Li [5], Wang et al. [15], and Wu and Bodigeler-Koehler [19]. Additionally, they emphasized that the characteristics of cross-cultural competence are highly complicated and there is a need for more studies to comprehend the definition and enhance its measurement. Moreover, they called for future studies to investigate a deeper understanding of the true characteristics, role, and outcomes of cross-cultural competence. However, no previous study has identified the mediating role of cross-cultural competence in promoting expatriate's cross-cultural adjustment and expatriate performance. Therefore, this study focus on implementing the four-fold following objectives: (1) To identify the influence of emotional intelligence and cultural adaptability on crosscultural competence and cross-cultural adjustment; (2) To identify the influence of cross-cultural adjustment on expatriate performance; (3) To identify the mediating effect of cross-cultural competence for the influences of cultural adaptability on cross-cultural adjustment; (4) To identify the mediating effect of cross-cultural competence for the influences of cultural adaptability on expatriate performance.

Emotional Intelligence
According to Altinay et al. [20], emotional intelligence has been defined in various approaches ranging from problem-solving, by virtue of thoughts, feelings, and intuition [21], to the ability to identify and manage emotions to achieve self-motivation [22]. One of the seminal studies by Salovey and Mayer [23] indicated that emotional intelligence relates to the individual's competence to judge their sensations and emotions and to differentiate and use this information to control and direct others' thoughts and behavior [24]. Salovey and Mayer [23] first defined emotional intelligence as "the subset of social intelligence that involves the ability to monitor one's own and others' feelings and emotions, to discriminate among them, and to use this information to guide one's thinking and actions." Individuals with high emotional intelligence can effectively utilize their interpersonal relationships by moderating their responses, handling negative emotions, and maintaining control over their own lives [25,26]. Many researchers suggested that emotional intelligence consists of four dimensions: first, the appraisal and expression of emotion in oneself, which refers to an individual's competency to realize and display their deep emotions; second, the appraisal and recognition of emotion in others refers to an individual's recognition and understanding of the emotions of people around them; third, the regulation of emotion in oneself regards an individual's competency to adjust their own emotions, which can help an individual recover their emotion rapidly from psychological distress; finally, the use of emotion to facilitate performance refers to an individual's capacity to utilize their own emotions by engaging them in meaningful activities to improve their performance [23,24,27].

Cultural Adaptability
Cultural adaptability is the additive process in which new skills and behaviors are added to or improved in an individual's original "repertoire", including the ability to utilize their positive behaviors or personality in ways appropriate in a new culture [28]. The previous studies indicated that cultural adaptability was considered as the potential for cross-cultural effectiveness and can employ their knowledge of new cultural behaviors and characteristics in different cultural circumstances [29]. Chang et al. [30] further emphasized that cultural adaptability plays a key role in interpersonal communication and enabling expatriates to survive and grow when they inhabit a new environment with unfamiliar customs, values, and assumptions.
Previous studies have demonstrated that emotional intelligence has a significant impact on and a close-relationship with cross-cultural adjustment and job performance [31], team performance [32], academic performance [33], and job satisfaction [34]. Additionally, expatriates' adaptability will be promoted if these individuals have controlled and adjusted their emotions to facilitate communication and integration with the host employees in a new environment [35]. Lin et al. [36] also illustrated that recruiters considered emotional intelligence as a critical standard to select expatriate managers, in order to decrease the uncertainty and disappointment due to cultural adaptability and boot success in international assignments. Thus, this study will promote a better understanding of emotional intelligence and its effect on other constructs. Based on the above argument, we formulate the following hypothesis: There is a positive relationship between emotional intelligence and cultural adaptability.

Cross-Cultural Competence
Previous studies demonstrated that cross-cultural competence has been described as an individual's effectiveness in interacting successfully with people in the international environment [4,12,19]. Additionally, Wu and Bodigerel-Koehler [19] indicated that crosscultural competence is related to specific behavioral competencies such as rational skills, general self-efficacy, and non-ethnocentrism to work successfully with people from a different national cultural background on an overseas assignment. Moreover, there is consensus that cross-cultural competence can assist individuals in effectively managing themselves, their relationships, and their business demands in different cultural environments [37].
According to Wu and Bodigerel-Koehler [19], relational skills are crucial for enabling expatriates to strengthen long-term relationships, interact with host employees, and recognize conversational patterns (e.g., anecdotes, jokes, proverbs, songs, and sport). General self-efficacy is another important factor that expatriates require to handle stressors and adjust their psychological states in response to other employees [38]. Non-ethnocentrism is the other factor that involves expatriates recognizing that their traditions, culture, and patterns of behavior are no better than other dissimilar traditions, cultures, and behaviors [19,39].
In a study about the relationship between emotional intelligence and cross-cultural competence with students as subjects, Guntersdorfer and Golubeva [40] demonstrated that emotional intelligence plays an important role in improving cross-cultural competence in the context of multicultural communication in schoolrooms. They emphasized that students with higher emotional intelligence are more cooperative and more likely to succeed in such multicultural collaboration environments. Additionally, in cross-cultural studies, it is also identified that cultural adaptability can facilitate employees' cultural ability to engage in impressive conservation in the new culture [14,41,42]. From the preceding discussion, the following hypotheses are proposed: There is a positive relationship between emotional intelligence and cross-cultural competence.

Hypothesis 3.
There is a positive relationship between cultural adaptability and cross-cultural competence.

Cross-Cultural Adjustment
Cross-cultural adjustment is defined as the process of adjusting to a new environment or the degree of psychological adjustment experienced, including an individual's comfort and acquaintance with working and living in a culture different from their original culture [43][44][45]. Cross-cultural adjustment is the crucial factor in determining expatriates' success or failure on a global assignment, which is typically a challenging, complicated, and difficult process for newcomers [46]. Cross-cultural adjustment has three major dimensions: general adjustment, work adjustment, and interaction adjustment, which refers to the comfort achieved in interacting in both work and non-work situations [3,43,47,48]. When expatriates have high cross-cultural adjustment, they are able to pay more attention to adjusting to the new lifestyle, activities, and assignments of an organization [49].
Some previous studies demonstrated that cross-cultural adjustment is a core consequence in an expatriate's duties that would affect the development of secondary or more distal with performance [50,51]. Researchers further suggested a significant effect between emotional intelligence and cross-cultural adjustment and employee performance. Previous studies indicated that if higher emotional intelligence has been described, then crosscultural adjustment is improved [52,53]. In addition, Cai and Rodriguez [54] proposed that cultural adaptability is able to relate to actual cross-cultural adjustment for managers in multinational companies. Previous studies have also emphasized that the higher cross-cultural competence expatriates have, the more readily they can adjust to their new environment [19,55]. Therefore, the following hypotheses are suggested:

Hypothesis 4. There is a positive relationship between emotional intelligence and cross-cultural adjustment.
Hypothesis 5. There is a positive relationship between cultural adaptability and cross-cultural adjustment.

Hypothesis 6.
There is a positive relationship between cross-cultural competence and cross-cultural adjustment.

Expatriate Performance
Previous studies demonstrated that job performance is the result of utilizing competencies, skills, attitudes, and behaviors to achieve outcomes that employees involve in tasks that are linked with and contribute to the goals and strategies of an organization [56,57]. In general, previous studies demonstrated that expatriate performance includes two important factors: contextual and task performance [58,59]. Malek and Budhwar [8] further emphasized that expatriate performance is the most crucial factor that generates behavior that contributes directly to the goals of the organization and enables an organization to compete with competitors in the host country. Since the main aim of using an expatriate on international assignments is to perform the expected tasks and to ensure all brands overseas follow the policy and strategy devised by headquarters, organizations must find justifications of the antecedents or stressors that could maximize employees' expatriate performance [8].
Previous studies established that cross-cultural adjustment is strongly correlated to expatriate performance [8,60]. Recently, Giorgi et al. [45] further demonstrated that individuals who have experienced more positive adjustment changes are able to get ahead of positive outcomes. Other researchers seek to elucidate the relationship between cross-cultural adjustment and expatriate performance in terms of the theory of work adjustment [61]. This theory explains that individuals and environments impose requirements on successful work relations that result from adjustment. Accordingly, well-adjusted expatriates will have better reserves of available personal resources to improve their performance on international assignments [62]. Therefore, we suggest the following hypothesis: There is a positive relationship between cross-cultural adjustment and expatriate performance.

The Mediation Effects of Cross-Cultural Competence
Earlier research has proposed that cultural adaptability is related to cross-cultural adjustment and the potential effectiveness of expatriates [54,63]. Additionally, it is also associated that cultural adaptability can foster individuals' cultural competency to integrate with new employees in cross-cultural settings [41]. In the field of international studies, it is demonstrated that cross-cultural competence has a positive relationship with cross-cultural adjustment and expatriate performance [15,19,64,65]. Wu and Bodigeler-Koehler [19] emphasized that the higher the cross-cultural competence expatriates have, the higher confidence they have to communicate with host employees, and the more they can regulate and control themselves in accordance with the new culture. Moreover, it is indicated that individuals will be able to accomplish their assignments better in an international environment where cross-cultural competence can aid them in improving their performance [64,65]. Therefore, in cross-cultural settings, the higher levels of cross-cultural competence that individuals have, the better they can adjust to the new environment, and the higher performance they can achieve [15,19].
The current study proposes that cultural adaptability enables individuals to better possess cross-cultural competence and results in better cross-cultural adjustment and expatriate performance in the new culture. In other words, cross-cultural competence may be an important process variable for understanding the influences of cultural adaptability on both cross-cultural adjustment and expatriate performance. Nevertheless, no previous studies have tried to investigate the mediating role of cross-cultural competence for the influence of cultural adaptability on cross-cultural adjustment and expatriate performance. Thus, this study intends to verify the indirect effects of the following links by using cross-cultural competence as the mediator.
Hypothesis 8a. Cross-cultural competence will mediate the influence of cultural adaptability on cross-cultural adjustment.
Hypothesis 8b. Cross-cultural competence will mediate the influence of cultural adaptability on expatriate performance.
The proposed framework is illustrated for the present study in Figure 1.

Questionnaire Design and Sampling Method
The questionnaire items were finalized after conducting a pre-test to review and confirm that the questions are understandable and that the reliability and validity of the research constructs are ensured. Forty respondents with similar characteristics to the survey population were invited to participate in the pre-testing. These pre-test respondents were working in Taiwan, and most are friends of the members of our research team. The questionnaire items were revised based on the responses from respondents and the reliability and discriminant validity tests from the data of the pre-test.
Both online and offline surveys were conducted to reach foreign expatriates working at multinational companies in Taiwan. Before data collection, the first author wrote letters to the human resource managers of high-tech firms in Taiwan to facilitate the invitation of expatriates to participate in this study. These human resource managers then selected the expatriate employees who became samples for this study. After the human resource managers shared these expatriates' email addresses, the authors sent the questionnaire directly to the expatriates through either online or offline methods. The authors also joined an expatriate community site (Inter Nations Taipei) to gather additional data from expatriates. Overall, 450 survey questionnaires were delivered, although the total valid sample was 240. Table 1 summarizes the demographic details of the respondents. Of the 240 valid study respondents, 64.2% were male and 35.8% were female. Respondents aged 26-35 years made up a majority (83.3%), and most of the respondents' educational backgrounds were bachelor's degrees (77.1%). The majority of the respondents had less than three years of overseas experiences (78.3%), followed by 3-5 years (20.4%) and 6-9 years (1.3%). Most of the respondents were supervisors in the MNCs (75.8%) and 76.7% of respondents had an annual income of less than 50,000 US dollars. Moreover, more than half of expatriates (55%) were Japanese, about 20.4% of them came from North American, and 15.4% of them came from Euro.

Construct Measurements
The survey questionnaire items were designed based on the review of the literature. The questionnaire items are listed as follows: Emotional intelligence was developed from Wong et al. [26]; cultural adaptability was developed from Olson and Kroger [28]; crosscultural competence was adopted from Beugelsdijk et al. [66], Harrison et al. [67], and Neuliep and McCroskey [68]; cross-cultural adjustment was developed from Befus [45] and Black and Stephens [48]; expatriate performance was adopted from Black et al. [69]. All research items are measured using a seven-point scale.
As shown in Appendix A, the results indicated that the item loadings in this research possess satisfactory value [⩾ 0.70], [70]. The nine items with the standardized loadings below 0.70 were kept in the model since they were not significantly low and still made a theoretical contribution to the construct definition. The questionnaire items with their standardized loadings and variance inflation factor (VIF) can be found in Appendix A.

Method
The partial least squares path modeling algorithm and bootstrapping were adopted in this study for both the measurement model and the structural model. PLS-SEM is less restrictive judging by its normal distribution assumption, sample size restriction, and multicollinearity situation than other options [71]. According to Hair et al. [70], PLS-SEM is particularly more appropriate in the following situations: (1) when the analysis is concerned with testing a theoretical framework from a prediction perspective; (2) when the structural model is complex and includes many constructs, indicators, and/or model relationships; (3) when the research objective is to better understand increasing complexity by exploring theoretical extensions of established theories (exploratory research for theory development); and (4) when a small population restricts the sample size (e.g., businessto-business research).

Evaluation of the Measurement Model
As demonstrated in Table 2, all Cronbach's α scores (ranging from 0.916 to 0.964) and Dijkstra-Henseler's rho (rho_A) (ranging from 0.917 to 0.967) are above the threshold value of 0.70, indicating consistency and reliability. Additionally, all of the correlation coefficients among research constructs were smaller than the square roots of the average variance extracted (AVE), suggesting strong evidence of discriminant validity. Henseler et al. [72] have developed a new procedure called the heterotrait-monotrait ratio of correlations (HTMT) to examine discriminant validity. The HTMT approach has demonstrated overcomes bias and reliable performance in computing the parameters of the structural model. Teo et al. [73] suggested that HTMT should be smaller than 0.90 to show discriminant validity. Table 2 showed that the values of HTMT were much less than 0.90, suggesting that discriminant validity has been established between two reflective variables [70,72].

Structural Model and Hypothesis Testing
According to Wetzels et al. [74], GoF = SQRT (AVE * R 2 ). GoF in this study was 0.544, which is much greater than the cutoff value of 0.36 for large effect sizes. Table 3 reports the results of the bootstrapping tests (based on 5000 samples), including the effect sizes (coefficient β) and the corresponding significance of the effects (t values and p values).

The Mediation Effects of Cross-Cultural Competence
To examine the mediating effect of cross-cultural competence, this study uses Sobel's statistical procedure test, which involves two phases. Based on MacKinnon et al. [75], the z-test was calculated using the following formula: Z-value = a*b/SQRT(b 2 *SEa 2 + a 2 *SEb 2 ), where a is the path coefficient of the relationship between the independent and the mediator variables, b is the path coefficient of the relationship between the mediator and the dependent variables, SEa is the standard error of the relationship between the independent and the mediator variables, and SEb is the standard error of the relationship between the mediator and the dependent variables [76]. If the z-test exceeds t-value = 1.96 with α = 0.05, then the mediation effect is significant [77].
As shown in Figure 2 and Table 4, while the direct effect between cultural adaptability and cross-cultural adjustment is not significant, the indirect effect of cultural adaptability on cross-cultural adjustment is significant (β = 0.082, p > 0.05; z = 2.531, p < 0.05, respectively), which means that the mediating effect of cross-cultural competence on the relationship between cultural adaptability and cross-cultural adjustment is confirmed. Therefore, H8a is supported, and cross-cultural competence is a full mediator between cultural adaptability and cross-cultural adjustment. Additionally, although the direct effect of cultural adaptability and expatriate performance is not significant (β = −0.071, p > 0.05), cultural adaptability has a positive and significant indirect effect on expatriate performance (z = 2.822, p < 0.01), which confirms the predictions of H8b. Hence, cross-cultural competence is a full mediator between cultural adaptability and expatriate performance.

Discussions
For many years the influence of emotional intelligence has rarely been discussed in an international assignment. Result indicates that when expatriates have high emotional intelligence, they are able to judge and generate their own and others' sensations and emotions, as well as to discriminate and use the information to control and direct behavior and action. In line with the present finding, previous studies also found that expatriates with a high level of emotional intelligence can handle their emotions when they communicate and interact with others and utilize their emotions to improve their psychological and social adaptation in a multicultural environment [25,35,36,78]. Additionally, emotional intelligence also serves as an important antecedent to cross-cultural competence. Since expatriates with high emotional intelligence can efficiently manage their responses and maintain control over their emotions [79,80]. Altinay et al. [20] further explained that individuals with higher emotional intelligence will facilitate higher cross-cultural competence in a culturally diverse setting.
The current study also illustrates that emotional intelligence directly influences crosscultural adjustment. This implies that individuals with a level high on emotional intelligence might have more ability to manage and regulate their emotions, perceive other people's emotions, master their interactions with others in a more active way, as well as utilize their emotions to improve his/her adjustment in a different multicultural environment and inhibit culture shock, relationship stress, and mental health problems [36,52]. This result is also consistent with the findings of previous researchers who advocated that expatriates with higher emotional intelligence are better at adjusting their emotions and interacting more effectively with their colleagues and managers [52,53].
Furthermore, our finding shows that cultural adaptability can predict an individual's cross-cultural competence. This means that individuals with higher cultural adaptability will have greater cross-cultural competence to better recognize, understand, work, and change to improve the competence inherent in a diverse cultural environment. Consequently, cross-cultural competence was determined to be the result of behavioral adaptation that facilitates individuals' ability to communicate and interact efficiently in the new environment [18,30]. Conversely, cultural adaptability did not have a direct effect on cross-cultural adjustment. The possible explanation for this finding is that expatriates may encounter difficulties in adjusting to the general environment, maintaining work performance levels and job standards, and satisfying supervisory responsibilities, as well as cooperating and interacting with local colleagues in the host country [41].
This study finding confirms that cross-cultural competence has positive effects on cross-cultural adjustment. Expatriates with high score cross-cultural competence are more readily able to understand, interact with, and adjust to the norms and values in the new cultural environment. Therefore, under a higher level of cross-cultural competence, expatriates will improve their cultural adjustment by undertaking their work with more energy and concentration [15,19]. Additionally, cross-cultural adjustment directly impacts expatriate performance, which supports the finding on the concept of adjustment by Black [81], namely that the level of the expatriate adjustment itself can determine the level of performance. Therefore, their performance will certainly be better. This finding again confirms the important role of cross-cultural adjustment, which is related to the ability and level of adjustment in a new cultural environment of individuals who are able to accomplish their assigned duties effectively [62,82].
The most remarkable outcomes of this study are the mediating mechanism of crosscultural competence on the influence of cultural adaptability on cross-cultural adjustment and expatriate performance, which are new results. The study result confirms that cultural adaptability facilitates effective adjustment for expatriates in the host country through cross-cultural competence. This finding emphasizes that when expatriates can adapt to a new environment, they will improve their cross-cultural competence, thereby enhancing them to adjust greater in a cross-cultural environment, since cultural adaptability plays a key role in interpersonal communication and enabling expatriates to survive and grow when they inhabit a new environment with unfamiliar customs, values, and assumptions [30]. However, as we discussed above, the direct effect between cultural adaptability and cross-cultural adjustment is not significant. Therefore, in the international environment, cultural adaptability can only influence cross-cultural adjustment through cross-cultural competence.
Moreover, the result primarily confirms that cross-cultural competence has operated a significant role in mediating the influences of cultural adaptability on expatriate performance. When expatriates have good communication skills and cultural knowledge, they will be confident to communicate and interact with the host employees to handle job assignments. As Chang et al. [30] have asserted, it is not only how people interact with the host culture, but also how much they are concerned about the new society and culture that have a substantial impact on their cultural competence before improving their outcome. Therefore, under a higher level of cultural adaptability, expatriates can improve their performance by undertaking their work with more energy and concentration, making them more involved in expatriate life through cross-cultural competence [55,83]. In other words, the influence of cultural adaptability on cross-cultural adjustment and expatriate performance may be voided without cross-cultural competence.

Conclusions and Contributions
This study aims to investigate the influence of emotional intelligence and cultural adaptability on cross-cultural competence, cross-cultural adjustment, as well as the mediating role of cross-cultural competence for the influence of cultural adaptability on crosscultural adjustment and expatriate performance. The findings indicate that both emotional intelligence and cultural adaptability are essential factors for expatriates to improve their cross-cultural competence. Additionally, expatriates with a higher level of emotional intelligence and cross-cultural competence can improve their cross-cultural adjustment, which further enhances their performance. Moreover, the most notable findings of this study are that cross-cultural competence fully mediated the relationship between cultural adaptability and cross-cultural adjustment and expatriate performance. Given that research in cross-cultural competence is still in a primary stage [4], the results of this study demonstrate the potential of configurational perspectives to advance our understanding of the antecedents, characteristics, and outcomes of the nature of cross-cultural competence as well as the mediating role of cross-cultural competence in improving cross-cultural adjustment and expatriate performance in cross-cultural settings.
In our view, the analysis makes several key contributions. First, the prominent theoretical contribution of the paper is that this study's results confirm that emotional intelligence and cultural adaptability are two important antecedents of cross-cultural competence that can improve expatriate's success in a multicultural environment. The present study provides additional evidence in the research of Bartel-Radic and Giannelloni [4] and Li [5] about the antecedents that can enhance expatriates' cross-cultural competence and its outcome in the cross-cultural environment. The results are interesting and expand our understanding of the various characteristics of cross-cultural competence (including relational skills, general self-efficacy, and non-ethnocentrism) in the cross-cultural setting and thus contribute to the literature on emotional intelligence, cultural adaptability, and crosscultural competence research.
Second, this study enriches the existing literature by providing a remarkable insight into the nature of cross-cultural competence as well as its mediation role on the influence of cultural adaptability on cross-cultural adjustment and expatriate performance. Crosscultural competence should consist of the research on expatriates and their cross-cultural adjustment as a crucial explanatory factor in verifying the success of an individual in culturally diverse settings. This is an important finding because the research on cross-cultural competence has not advanced to a clearly better understanding of the concept and the feature of cross-cultural competence is highly complicated [5]. The results also answer the calls of recent studies about the need to develop a deeper understanding of what the true characteristic of cross-cultural competence really is [4,5]. These research findings are valuable since, to the best of our knowledge, there is no prior research illustrating how crosscultural competence functions on the influence of cultural adaptability on cross-cultural adjustment and expatriate performance.
Third, most of the previous studies tend to focus on the role of expatriates' cultural intelligence on cross-cultural adjustment, but few consider how emotional intelligence impacts expatriate's cross-cultural adjustment [11,43,44,84]. In contrast to Lii and Wong's [85] result that there is no relationship between emotional intelligence and cross-cultural adjustment, the present study reaffirms the positive and critical impact of expatriate's emotional intelligence on cross-cultural adjustment [52]. Therefore, this study expands the body of knowledge on international management by enlarging the fields in which emotional intelligence and cross-cultural adjustment have been studied.
Fourth, it goes additionally by presenting an empirical examination for how the relationship between expatriates' emotional intelligence, cultural adaptability, cross-cultural competence, cross-cultural adjustment, and expatriate performance functions. This study has provided a highly valuable milestone into the considerable role of cross-cultural competence in multinational companies. Finally, the results of this study could provide a valuable reference for academics as the gateway to further analysis of the role of crosscultural competence and other relevant issues.
Apart from the main findings, this study also has significant managerial implications for human resource management practices towards employees in multicultural companies. First, managers should evaluate the potential benefits of employees' emotional intelligence and cultural adaptability before dispatching them to overseas affiliates. Additionally, it is important to utilize cross-cultural competence as an index to assess expatriates' competitive advantages in overseas assignments. Second, in line with our results, expatriating firms should pay special attention to long-/short-term orientation, training programs, or assignments to enhance and nurture expatriates' emotional intelligence, cultural adaptability, and cross-cultural competence to improve their cross-cultural adjustment and productivity. Third, managers of organizations should encourage their expatriates to interact with people from different cultures, so that the misunderstandings or stress generated by experiencing an unfamiliar culture can be decreased [86]. Fourth, organizations should further consider emotional intelligence, cultural adaptability, and cross-cultural competence as essential requirements or indicators to find and evaluate employees/candidates before sending them on or hiring them for international assignments [3,53]. Finally, employees also need to be active and prepare their plans to facilitate their integration with different cultures in the new country. Being aware of suitable assignments before undertaking an international duty can help expatriates to better adapt to the emotional, psychological, and career-oriented demands of international assignments [4].

Limitations and Future Studies
Except for the contributions the research makes, the present paper also has several limitations, which should be taken into account for thoughtful generalization of the research findings and future research direction. First, the surveys were self-report based, although social desirability was considered to minimize this limitation. Therefore, future research should use sources other than self-reports, such as supervisor or spouse assessments, for the measurement of research constructs. Second, given that the sample subjects were collected through convenient sampling, our study may not be generalizable to other populations. Third, the influence of the control variable was mostly not determined. Future researchers could benefit from including different control variables. For instance, an interesting research question would be to examine the role of nationality variables in influencing the relationship among research constructs. Fourth, since the research model is still complicated with many research hypotheses, future research can develop a simpler research model and focus on the direct and indirect effect of cross-cultural competence and empirically test the feasibility of the model. Finally, this study adopted a cross-sectional survey rather than utilizing longitudinal data. Future work could extend the results of this study by adopting longitudinal research to test and improve the viability of the Ucurve and W-curve models.

Conflicts of Interest:
The authors declare no conflict of interest.