AUTHOR=Lee Yu-Lun , Yang Dong-Jenn TITLE=Potential Contributions of Psychological Capital to the Research Field of Marketing JOURNAL=Frontiers in Psychology VOLUME=10 YEAR=2019 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2019.02111 DOI=10.3389/fpsyg.2019.02111 ISSN=1664-1078