Evidence from social psychology confirms that strong relationships are founded on deep knowledge of others gained over long periods after sharing personal information. The existence, benefit, and management of relationships are also topics of increasing interest in Marketing. This paper reports on the results of a study of sales persons’ assessments of their personal acquaintance with friends and customers. The results indicate that personal acquaintance as a construct and measure can be successfully employed in a business context and used to distinguish among friends and good and bad customers. The findings open the way for the use of the construct in a commercial context as well as in the development of marketing theory. Limitations and avenues for future research are given.<br /
