Abstract
This paper studies the relationship between organizational ethical climate and the forms of organizational citizenship behavior (OCB), including in-role and extra-role behaviors, and examines the mediating effect of employee loyalty. A sample of employees from a traditional Hong Kong-based company was used as a study group. The purpose of this study was to examine the causes and implications of how various ethical work climates affect employee performance. Based on a model proposed by Victor and Cullen, ethical climate is arranged from lower levels to higher levels. The results suggest that lower levels of ethical climate (instrumentality and independence), characterizing a weak relational contract between employee and employer, are associated with negative extra-role behavior. In contrast, higher levels of ethical climate (caring and law-and-code), symbolic of a strong relational contract at work, are associated with positive extra-role behavior. Moreover, normative commitment mediated a positive relationship between caring and identification with the company, whereas attitudinal loyalty mediated the negative relationship between independence and altruism. Implications for future research and practice are discussed.