The study compares the role of self-reported causal attributions of past performance on self-generated expectations of future performance among salespeople from independent and interdependent national cultures. The results suggest that salespeople from independent cultures attribute successful past performance to internal factors (i.e., effort or ability), but not external factors (i.e., luck or organizational support). Salespeople from interdependent cultures, however, attribute successful performances to both internal and external factors. Furthermore, the relationship between past performance and future performance expectation is mediated by internal or external causal attributions depending upon whether the salespeople operate in independent or interdependent cultures, respectively. © 2007 PSE National Educational Foundation. All rights reserved.