由於航空業中有許多第一線服務人員，如空服員及地勤人員，而管理階級的比例較少，因此員工相對容易在職涯中遇到停滯期。根據社會交換理論，過往研究顯示面臨職涯停滯時，員工的組織承諾會降低，而本研究提出組織承諾的降低則會使其減少利社會服務行為。本研究認為對具有多元職涯傾向的員工來說，由於其是依靠自己而非組織來管理、發展他們的職涯目標，他們的組織承諾會更顯著地降低。同時，為了減緩職涯停滯所帶來的負面影響，員工可能會開始發展個人興趣或甚至從事兼職或副業的行為。而對航空公司來說，要如何減緩員工面臨職涯停滯的負面結果，同時管理員工從事的副業行為會是一個挑戰。此研究蒐集了250位台灣籍、任職在本國籍或外籍航空公司的空服員及地勤之問卷資料，檢驗職涯停滯、多元職涯傾向與從事副業行為對組織承諾的三階段交互作用，及對利社會服務行為的間接影響。結果顯示職涯停滯會負向影響組織承諾，與過去研究結果一致，而本研究也進一步發現組織承諾的降低確實伴隨利社會服務行為的減少。服務人員的多元職涯傾向會強化職涯停滯對組織承諾的負向影響，而副業行為的調節作用與三階交互作用則未成立。此研究最後也與6位目前仍在國籍航空公司任職的空服員與地勤人員、以及退役的本國籍及外籍航空之空服員進行了質性訪談，並提出未來研究方向與實務上的管理建議。

Due to the large population of front-line employees in the aviation industry in Taiwanese airline companies, many employees might experience plateau in their career. Career plateau leads to negative work-related outcomes such as lower organizational commitment and fewer prosocial service behaviors. Those behaviors are especially crucial to airline companies since it relates to the service quality and customer satisfaction. As employees reach plateau in their career, individuals with protean career orientation might feel less committed. Also, some might start to develop their personal career goals by a second job or career, which is moonlighting. To reduce the unfavorable outcomes of career plateau and moonlighting behaviors would be a challenge for airline companies and the need to retain talented employees. This study collected survey data from 250 Taiwanese employees in domestic and foreign airlines and examined the three-way interaction of career plateau, protean career orientation, and moonlighting awareness on organizational commitment and indirectly on prosocial service behaviors. The results showed that career plateau reduces commitment, and that commitment decreases prosocial service behaviors. Protean career orientation strengthens the negative relationship between career plateau and commitment. However, the moderation effect of moonlighting was not supported. This study also interviewed six flight attendants and ground staff to qualitatively investigate the research gap and provide suggestions for future research and practical implications.

論文審定書 i
摘要 ii
Abstract iii
1. Introduction 1
2. Literature review 8
2.1 Career plateau and its consequences 8
2.2 The relationship between organizational commitment and prosocial service behaviors 11
2.3 The moderating role of protean careen orientation 15
2.4 The moderating role of moonlighting awareness 18
3. Methods 23
3.1 Participants and procedure 23
3.2 Common Method Variance 28
3.3 Measures 29
3.4 Analytic strategies 36
4. Results 38
4.1 Confirmatory factor analysis 38
4.2 Correlation analysis 39
4.3 Hypothesis testing 42
4.4 Additional analyses 45
5. Discussion 50
5.1 Conclusion 50
5.2 Limitations and recommendations for future research 53
5.3 Recommendations for practice 59
References 64
Appendix: Online Questionnaire 72
Appendix 1. Time 1 questionnaire 72
Appendix 2. Time 2 questionnaire 77
Appendix 3. Interview questions 80

Ackfeldt, A.-L., & Wong, V. (2006). The Antecedents of Prosocial Service Behaviours: An Empirical Investigation. Service Industries Journal, 26(7), 727-745. doi:10.1080/02642060600898237
AFP, H. K. (2020, February 5). Coronavirus: Cathay Pacific asks staff to take unpaid leave. BBC. Retrieved from https://www.bbc.com/news/business-51383284
Allen, N. J., & Meyer, J. P. (1990). The measurement and antecedents of affective, continuance and normative commitment to the organization. Journal of Occupational Psychology, 63(1), 1-18. doi:https://doi.org/10.1111/j.2044-8325.1990.tb00506.x
Allen, T. D., Poteet, M. L., & Russell, J. E. A. (1998). Attitudes of Managers Who Are More or Less Career Plateaued. The Career Development Quarterly, 47(2), 159-172. doi:https://doi.org/10.1002/j.2161-0045.1998.tb00549.x
Allen, T. D., Russell, J. E. A., Poteet, M. L., & Dobbins, G. H. (1999). Learning and development factors related to perceptions of job content and hierarchical plateauing. Journal of Organizational Behavior, 20(7), 1113-1137. doi:10.1002/(SICI)1099-1379(199912)20:7<1113::AID-JOB944>3.0.CO;2-7
Averett, S. L. (2001). Moonlighting: multiple motives and gender differences. Applied Economics, 33(11), 1391-1410. doi:10.1080/00036840010007957
Baba, V. V., & Jamal, M. (1992). How much do we really know about moonlighters? Public Personnel Management, 21(1), 65-73. doi:10.1177/009102609202100106
Bardwick, J. M. (1986). The plateauing trap: How to avoid it in your career... and your life: American Management Association.
Baruch, Y. (2014). The development and validation of a measure for protean career orientation. The International Journal of Human Resource Management, 25(19), 2702-2723. doi:10.1080/09585192.2014.896389
Baruch, Y., Wordsworth, R., Mills, C., & Wright, S. (2016). Career and work attitudes of blue-collar workers, and the impact of a natural disaster chance event on the relationships between intention to quit and actual quit behaviour. European Journal of Work and Organizational Psychology, 25(3), 459-473. doi:10.1080/1359432X.2015.1113168
Becker, T. E., Randall, D. M., & Riegel, C. D. (1995). The Multidimensional View of Commitment and the Theory of Reasoned Action: A Comparative Evaluation. Journal of Management, 21(4), 617-638. doi:10.1177/014920639502100402
Bettencourt, L. A., & Brown, S. W. (1997). Contact employees: Relationships among workplace fairness, job satisfaction and prosocial service behaviors. Journal of Retailing, 73(1), 39-61. doi:https://doi.org/10.1016/S0022-4359(97)90014-2
Bettencourt, L. A., & Brown, S. W. (2003). Role stressors and customer-oriented boundary-spanning behaviors in service organizations. Journal of the Academy of Marketing Science, 31(4), 394-408. doi:10.1177/0092070303255636
Betts, S. C. (2006). The Decision to Moonlight or Quit: Incorporating Multiple Jobholding into a Model of Turnover. Journal of Organizational Culture, Communications
Conflict, 10, 63.
Blau, P. M. (1964). Exchange and power in social life. New York: J. Wiley.
Boyd, E. M., Sliter, M. T., & Chatfield, S. (2016). Double trouble: Work–family conflict and well-being for second job holders. Community, Work & Family, 19(4), 462-480. doi:10.1080/13668803.2015.1074545
Brief, A. P., & Motowidlo, S. J. (1986). Prosocial Organizational Behaviors. The Academy of Management Review, 11(4), 710-725. doi:10.2307/258391
Briscoe, J. P., Hall, D. T., & Frautschy DeMuth, R. L. (2006). Protean and boundaryless careers: An empirical exploration. Journal of Vocational Behavior, 69(1), 30-47. doi:https://doi.org/10.1016/j.jvb.2005.09.003
Brochado, A., Rita, P., Oliveira, C., & Oliveira, F. (2019). Airline passengers’ perceptions of service quality: themes in online reviews. International Journal of Contemporary Hospitality Management, 31(2), 855-873. doi:10.1108/IJCHM-09-2017-0572
Brunet, J. (2008). Blurring the Line between Public and Private Sectors: The Case of Police Officers' Off-Duty Employment. Public Personnel Management, 37, 161-174. doi:10.1177/009102600803700202
Campion, E. D., Caza, B. B., & Moss, S. E. (2019). Multiple Jobholding: An Integrative Systematic Review and Future Research Agenda. Journal of Management, 46(1), 165-191. doi:10.1177/0149206319882756
CathayPacific. (2020). Cathay Pacific Update on Corporate Restructuring and Change of Conditions of Service for Aircrew. Retrieved from https://news.cathaypacific.com/cathay-pacific-update-on-corporate-restructuring-and-change-of-conditions-of-service-for-aircrew-349479
Caza, B. B., Moss, S., & Vough, H. (2017). From Synchronizing to Harmonizing: The Process of Authenticating Multiple Work Identities. Administrative Science Quarterly, 63(4), 703-745. doi:10.1177/0001839217733972
Chan, K. Y., Ho, M.-h. R., Chernyshenko, O. S., Bedford, O., Uy, M. A., Gomulya, D., . . . Phan, W. M. J. (2012). Entrepreneurship, professionalism, leadership: A framework and measure for understanding boundaryless careers. Journal of Vocational Behavior, 81(1), 73-88. doi:10.1016/j.jvb.2012.05.001
Chao, G. T. (1990). Exploration of the conceptualization and measurement of career plateau: A comparative analysis. Journal of Management, 16(1), 181-193. doi:10.1177/014920639001600113
Chay, Y. W., Aryee, S., & Chew, I. (1995). Career plateauing: reactions and moderators among managerial and professional employees. The International Journal of Human Resource Management, 6(1), 61-78. doi:10.1080/09585199500000003
Cortellazzo, L., Bonesso, S., & Gerli, F. (2019). Protean career orientation: Behavioral antecedents and employability outcomes. Journal of Vocational Behavior, 116, 103343. doi:10.1016/j.jvb.2019.103343
David Allen, W. (1998). The moonlighting decision of unmarried men and women: Family and labor market influences. Atlantic Economic Journal, 26(2), 190-205. doi:10.1007/BF02299361
De Vos, A., & Soens, N. (2008). Protean attitude and career success: The mediating role of self-management. Journal of Vocational Behavior, 73(3), 449-456. doi:https://doi.org/10.1016/j.jvb.2008.08.007
Drucker-Godard, C., Fouque, T., Gollety, M., & Le Flanchec, A. (2015). Career Plateauing, Job Satisfaction and Commitment of Scholars in French Universities. Public Organization Review, 15(3), 335-351. doi:10.1007/s11115-014-0280-0
Eby, L. T., Freeman, D. M., Rush, M. C., & Lance, C. E. (1999). Motivational bases of affective organizational commitment: A partial test of an integrative theoretical model. Journal of Occupational and Organizational Psychology, 72(4), 463-483. doi:https://doi.org/10.1348/096317999166798
Emmerik, I. H., & Sanders, K. (2005). Mismatch in working hours and affective commitment : Differential relationships for distinct employee groups. Journal of Managerial Psychology, 20. doi:10.1108/02683940510631462
Ference, T. P., Stoner, J. A., & Warren, E. K. (1977). Managing the Career Plateau. The Academy of Management Review, 2(4), 602-612. doi:10.2307/257512
Fraser, J., & Gold, M. (2001). `Portfolio Workers': Autonomy and Control amongst Freelance Translators. Work, Employment and Society, 15(4), 679-697. doi:10.1177/095001701400438152
Gouldner, A. W. (1960). The Norm of Reciprocity: A Preliminary Statement. American Sociological Review, 25(2), 161-178. doi:10.2307/2092623
Green, J. (2013). Moonlighting: how to handle employees working additional jobs. Retrieved from https://www.personneltoday.com/hr/moonlighting-how-to-handle-employees-working-additional-jobs/
Hall, D. T. (1996). Protean Careers of the 21st Century. The Academy of Management Executive (1993-2005), 10(4), 8-16.
Hall, D. T. (2004). The protean career: A quarter-century journey. Journal of Vocational Behavior, 65(1), 1-13. doi:https://doi.org/10.1016/j.jvb.2003.10.006
Hall, D. T., & Yip, J. (2016). Discerning career cultures at work. Organizational Dynamics, 45(3), 174-184.
Hall, D. T., Yip, J., & Doiron, K. (2018). Protean Careers at Work: Self-Direction and Values Orientation in Psychological Success. Annual Review of Organizational Psychology and Organizational Behavior, 5(1), 129-156. doi:10.1146/annurev-orgpsych-032117-104631
Hays, R. D., Hayashi, T., & Stewart, A. L. (1989). A Five-Item Measure of Socially Desirable Response Set. Educational and Psychological Measurement, 49(3), 629-636. doi:10.1177/001316448904900315
Hurst, C., Butts, M., & Eby, L. (2011). Professional plateaus: Health and nonwork outcomes and impact of competence and control perceptions. Paper presented at the Annual Southern Management Association Conference.
Hurst, C. S., Baranik, L. E., & Clark, S. (2017). Job Content Plateaus:Justice, Job Satisfaction, and Citizenship Behavior. Journal of Career Development, 44(4), 283-296. doi:10.1177/0894845316652250
Hurst, C. S., Kungu, K., & Flott, P. J. B. (2012). Stress, Organizational Citizenship Behaviors, and Coping: Comparisons Among Plateaued and Non-Plateaued Employees. Business
Management Research, 1, 17.
Jamal, M. (1986). Moonlighting: Personal, Social, and Organizational Consequences. Human Relations, 39(11), 977-990. doi:10.1177/001872678603901102
Jamal, M., Baba, V. V., & Rivière, R. (1998). Job stress and well-being of moonlighters: the perspective of deprivation or aspiration revisited. Stress Medicine, 14(3), 195-202. doi:https://doi.org/10.1002/(SICI)1099-1700(199807)14:3<195::AID-SMI779>3.0.CO;2-R
Jung, J.-h., & Tak, J. (2008). The Effects of Perceived Career Plateau on Employees' Attitudes: Moderating Effects of Career Motivation and Perceived Supervisor Support with Korean Employees. Journal of Career Development, 35(2), 187-201. doi:10.1177/0894845308325648
Kao, S.-c. (2020a, 2020, Apr 25). EVA unveils personal leave scheme. Taipei Times. Retrieved from https://www.taipeitimes.com/News/biz/archives/2020/04/25/2003735242
Kao, S.-c. (2020b, 2020, Mar 21). StarLux cancels all flights to comply with restrictions. Retrieved from https://www.taipeitimes.com/News/biz/archives/2020/03/21/2003733077
Kim, N., & Hall, D. T. (2012). Protean Career Model and Retirement. The Oxford Handbook of Retirement, 24.
Lapalme, M.-È., Tremblay, M., & Simard, G. (2009). The relationship between career plateauing, employee commitment and psychological distress: the role of organizational and supervisor support. The International Journal of Human Resource Management, 20(5), 1132-1145. doi:10.1080/09585190902850323
Lee, D. (2020a). Cathay Pacific ‘to axe 6,000 staff and Dragon brand’ in bid to stay afloat, with most cuts aimed at Hong Kong workforce.
Lee, D. (2020b, Nov 5, 2020). Nearly all Cathay Pacific pilots, cabin crew sign new salary-slashing contracts. South China Morning Post. Retrieved from https://www.scmp.com/news/hong-kong/transport/article/3108545/vast-majority-cathay-pacific-pilots-sign-new-salary?utm_source=copy_link&utm_medium=share_widget&utm_campaign=3108545
Lee, H.-J. (2001). Willingness and capacity: the determinants of prosocial organizational behaviour among nurses in the UK. The International Journal of Human Resource Management, 12(6), 1029-1048. doi:10.1080/713769686
Lee, P. C. B. (2003). Going beyond career plateau: Using professional plateau to account for work outcomes. Journal of Management Development, 22(6), 538-551. doi:10.1108/02621710310478503
Lee, Y.-K., Nam, J., Park, D.-H., & Lee, K. A. J. J. o. S. M. (2006). What factors influence custome’ oriented prosocial behavior of customer contact employees? , 20, 251-264.
Lemire, L., Saba, T., & Gagnon, Y.-C. (1999). Managing Career Plateauing in the Quebec Public Sector. Public Personnel Management, 28(3), 375-391. doi:10.1177/009102609902800305
Lentz, E., & Allen, T. D. (2009). The Role of Mentoring Others in the Career Plateauing Phenomenon. Group & Organization Management, 34(3), 358-384. doi:10.1177/1059601109334027
Liang, S.-C., & Hsieh, A.-T. (2005). Individual's Perception of Career Development and Job Burnout Among Flight Attendants in Taiwan. The International Journal of Aviation Psychology, 15(2), 119-134. doi:10.1207/s15327108ijap1502_1
Limpanitgul, T., Jirotmontree, A., Robson, M. J., & Boonchoo, P. (2013). Job attitudes and prosocial service behavior: A test of the moderating role of organizational culture. Journal of Hospitality and Tourism Management, 20, 5-12. doi:https://doi.org/10.1016/j.jhtm.2013.05.006
Lin, G.-P. (2009). What to Do About Moonlighting Workers.
Lin, Y.-c. (2015). Are you a protean talent? The influence of protean career attitude, learning-goal orientation and perceived internal and external employability. Career Development International, 20(7), 753-772. doi:10.1108/CDI-04-2015-0056
MacKenzie, S. B., Podsakoff, P. M., & Ahearne, M. (1998). Some Possible Antecedents and Consequences of In-Role and Extra-Role Salesperson Performance. Journal of Marketing, 62(3), 87-98. doi:10.1177/002224299806200306
Malhotra, N., & Ackfeldt, A.-L. (2016). Internal communication and prosocial service behaviors of front-line employees: Investigating mediating mechanisms. Journal of Business Research, 69(10), 4132-4139. doi:10.1016/j.jbusres.2016.03.038
Martin, J., & Sinclair, R. (2007). A typology of the part-time workforce: Differences on job attitudes and turnover. Journal of Occupational & Organizational Psychology, 80, 301-319. doi:10.1348/096317906X113833
Marucci-Wellman, H. R., Lin, T.-C., Willetts, J. L., Brennan, M. J., & Verma, S. K. (2014). Differences in time use and activity patterns when adding a second job: implications for health and safety in the United States. American journal of public health, 104(8), 1488-1500. doi:10.2105/AJPH.2014.301921
Meyer, J. P., Allen, N., & Topolnytsky, L. (1998). Commitment in a changing world of work. 39, 83-93.
Meyer, J. P., & Allen, N. J. (1991). A three-component conceptualization of organizational commitment. Human Resource Management Review, 1(1), 61-89. doi:https://doi.org/10.1016/1053-4822(91)90011-Z
Meyer, J. P., Allen, N. J., & Smith, C. A. (1993). Commitment to organizations and occupations: Extension and test of a three-component conceptualization. Journal of Applied Psychology, 78(4), 538-551. doi:10.1037/0021-9010.78.4.538
Milliman, J. F. (1992). Causes, Consequences, and Moderating Factors of Career Plateauing: University of Southern California.
Mowday, R. T., Porter, L. W., & Steers, R. M. (1982). 2 - Nature of Organizational Commitment. In R. T. Mowday, L. W. Porter, & R. M. Steers (Eds.), Employee–Organization Linkages (pp. 19-43): Academic Press.
Nachbagauer, A., & Riedl, G. J. I. J. o. M. (2002). Effects of concepts of career plateaus on performance, work satisfaction and commitment. 23, 716-733.
O'Reilly, C. A., & Chatman, J. (1986). Organizational commitment and psychological attachment: The effects of compliance, identification, and internalization on prosocial behavior. Journal of Applied Psychology, 71(3), 492-499. doi:10.1037/0021-9010.71.3.492
Organ, D. W. (1988). Organizational citizenship behavior: The good soldier syndrome. Lexington, MA, England: Lexington Books/D. C. Heath and Com.
Panos, G., Pouliakas, K., & Zangelidis, A. (2009). The Inter-Related Dynamics of Dual Job Holding, Human Capital and Occupational Choice.
Paxson, C. H., & Sicherman, N. (1996). The Dynamics of Dual Job Holding and Job Mobility. Journal of Labor Economics, 14(3), 357-393. doi:10.1086/209815
Podsakoff, P. M., MacKenzie, S. B., Moorman, R. H., & Fetter, R. (1990). Transformational leader behaviors and their effects on followers' trust in leader, satisfaction, and organizational citizenship behaviors. The Leadership Quarterly, 1(2), 107-142. doi:https://doi.org/10.1016/1048-9843(90)90009-7
Porter, C., Woo, S. E., & Tak, J. (2015). Developing and Validating Short Form Protean and Boundaryless Career Attitudes Scales. Journal of Career Assessment, 24(1), 162-181. doi:10.1177/1069072714565775
Redondo, R., Sparrow, P., & Hernández-Lechuga, G. (2019). The effect of protean careers on talent retention: examining the relationship between protean career orientation, organizational commitment, job satisfaction and intention to quit for talented workers. The International Journal of Human Resource Management, 1-24. doi:10.1080/09585192.2019.1579247
Rodrigues, R., Guest, D., Oliveira, T., & Alfes, K. (2015). Who benefits from independent careers? Employees, organizations, or both? Journal of Vocational Behavior, 91, 23-34. doi:10.1016/j.jvb.2015.09.005
Schappe, S. P. (1998). The Influence of Job Satisfaction, Organizational Commitment, and Fairness Perceptions on Organizational Citizenship Behavior. The Journal of Psychology, 132(3), 277-290. doi:10.1080/00223989809599167
Schnake, M. (1991). Organizational citizenship: A review, proposed model, and research agenda. Human Relations, 44(7), 735-759. doi:10.1177/001872679104400706
Stout, S. K., Slocum, J. W., & Cron, W. L. (1988). Dynamics of the career plateauing process. Journal of Vocational Behavior, 32(1), 74-91. doi:https://doi.org/10.1016/0001-8791(88)90007-3
Sultana, R., & Malik, O. F. (2019). Is Protean Career Attitude Beneficial for Both Employees and Organizations? Investigating the Mediating Effects of Knowing Career Competencies. 10(1284). doi:10.3389/fpsyg.2019.01284
Sun, K. S., & Lee, Y. S. (2010, 7-10 Dec. 2010). A study of occupational stress of aviation ground crews. Paper presented at the 2010 IEEE International Conference on Industrial Engineering and Engineering Management.
Tang, T.-W., & Tang, Y.-Y. (2012). Promoting service-oriented organizational citizenship behaviors in hotels: The role of high-performance human resource practices and organizational social climates. International Journal of Hospitality Management, 31(3), 885-895. doi:https://doi.org/10.1016/j.ijhm.2011.10.007
Tremblay, M., & Roger, A. (1993). Individual, Familial, and Organizational Determinants of Career Plateau: An Empirical Study of the Determinants of Objective and Subjective Career Plateau in a Population of Canadian Managers. Group & Organization Management, 18(4), 411-435. doi:10.1177/1059601193184003
Tremblay, M., Roger, A., & Toulouse, J.-M. (1995). Career Plateau and Work Attitudes: An Empirical Study of Managers. Human Relations, 48(3), 221-237. doi:10.1177/001872679504800301
Vatankhah, S., & Darvishi, M. (2018). An empirical investigation of antecedent and consequences of internal brand equity: Evidence from the airline industry. Journal of Air Transport Management, 69, 49-58. doi:https://doi.org/10.1016/j.jairtraman.2018.02.002
Veiga, J. F. (1981). Plateaued versus Nonplateaued Managers: Career Patterns, Attitudes, and Path Potential. The Academy of Management Journal, 24(3), 566-578. doi:10.2307/255575
Vigoda-Gadot, E., Hind, P., Fenton-O'Creevy, M., & Baruch, Y. (2004). Prosocial behavior and job performance: Does the need for control and the need for achievement make a difference? Social Behavior and Personality An International Journal, 32. doi:10.2224/sbp.2004.32.4.399
Volmer, J., & Spurk, D. (2010). Protean and boundaryless career attitudes: Relationships with subjective and objective career success. Journal for Labour Market Research, 43, 207-218. doi:10.1007/s12651-010-0037-3
Walsh, W. F. (1986). Patrol officer arrest rates: A study of the social organization of police work. Justice Quarterly, 3(3), 271-290. doi:10.1080/07418828600088941
Wang, Y.-H., Hu, C., Hurst, C. S., & Yang, C.-C. (2014). Antecedents and outcomes of career plateaus: The roles of mentoring others and proactive personality. Journal of Vocational Behavior, 85(3), 319-328. doi:https://doi.org/10.1016/j.jvb.2014.08.003
Wiernik, B. M., & Kostal, J. W. (2019). Protean and boundaryless career orientations: A critical review and meta-analysis. Journal of Counseling Psychology, 66(3), 280-307. doi:10.1037/cou0000324
Winters, J. V. (2010). Teacher moonlighting: evidence from the US Current Population Survey. Applied Economics Letters, 17(11), 1111-1114. doi:10.1080/00036840902817524
Yang, W.-N., Johnson, S., & Niven, K. (2018). “That's not what I signed up for!” A longitudinal investigation of the impact of unmet expectation and age in the relation between career plateau and job attitudes. Journal of Vocational Behavior, 107, 71-85. doi:https://doi.org/10.1016/j.jvb.2018.03.006
Yang, W.-N., Niven, K., & Johnson, S. (2019). Career plateau: A review of 40 years of research. Journal of Vocational Behavior, 110, 286-302. doi:10.1016/j.jvb.2018.11.005
Yeh, Y.-P. (2014). Exploring the impacts of employee advocacy on job satisfaction and organizational commitment: Case of Taiwanese airlines. Journal of Air Transport Management, 36, 94-100. doi:https://doi.org/10.1016/j.jairtraman.2014.01.002
Zickar, M. J., Gibby, R. E., & Jenny, T. (2004). Job attitudes of workers with two jobs. Journal of Vocational Behavior, 64(1), 222-235. doi:https://doi.org/10.1016/S0001-8791(03)00047-2