Being different from the Western concept of "relationship," Chinese concept of "relationship," that is, guanxi profoundly influences Chinese society in commercial activities, business ethics, and organizational behaviors. Moreover, firms can develop their networks of guanxi to gain competitive advantages. Highlighting the cultural and organizational antecedents oí guanxi, namely Confucianism and organizational ethical climate, this study examines the influence of these two antecedents on guanxi and makes comparisons of guanxi, Confucianism and organizational ethical climate between Taiwan and Mainland China. The results (...) show that Taiwan, where preserves more Confucian culture, tends to put much emphasis on guanxi than Mainland China, especially with respect to mianzi. Concerning ethical climate, Taiwan tends to have instrumental, and law and code ethical climate. (shrink)