This book constitutes the refereed proceedings of the Second International Workshop on Electronic Commerce, WELCOM 2001, held in Heidelberg, Germany in November 2001.The 17 revised full papers presented together with two invited contributions were carefully reviewed and selected from 34 submissions. The papers are organized in topical sections on trade and markets, security and trust, auctions, profiling, and business interaction.

This book constitutes the refereed proceedings of the Second International Workshop on Electronic Commerce, WELCOM 2001, held in Heidelberg, Germany in November 2001.The 17 revised full papers presented together with two invited contributions were carefully reviewed and selected from 34 submissions. The papers are organized in topical sections on trade and markets, security and trust, auctions, profiling, and business interaction.