A call for longitudinal research in positive organizational behavior
定义了心理资本并回顾其现状，呼吁开展纵向研究以更好理解其稳定性（状态与特质），并探讨了该研究设计的关联性、潜在障碍和优势。
Abstract After defining and providing the current status of psychological capital (PsyCap), we address the need to better understand its stability (i.e., state vs . trait). Specifically, we issue a call for longitudinal research. The balance of this “incubator” article examines the relevance, potential obstacles, and advantages of this design in meeting PsyCap's future research needs. Copyright © 2008 John Wiley & Sons, Ltd.