@inbook { sardinha12, abstract = {As the Internet helps mediate millions of transactions in electronic markets, research work on automated trading agents is helping humans improve their trading objectives (e.g., finding lower prices and improving delivery options). This chapter presents an overview of the research work on trading agents in the context of the Trading Agent Competition. The Trading Agent Competition is an annual event where researchers are interested in the following research questions: (i) how to design trading agents, (ii) how to evaluate these trading agents, and (iii) how do trading agents affect electronic markets. This research community has produced many research results that are based on state-of-the-art techniques from artificial intelligence, operations research, statistics, and other relevant fields.}, chapter = {Electronic Markets and Multiagent Systems}, journal = {In: Karim Rezaul (Ed.). Strategic and Pragmatic E-Business: Implications for Future Business Practices. Published by IGI Global}, keywords = {Intelligent Virtual Agents;Miscellaneous;}, number = {3}, pages = {56-71}, publisher = {IGI Global}, title = {In: Karim Rezaul (Ed.). Strategic and Pragmatic E-Business: Implications for Future Business Practices}, year = {2012}, author = {Alberto Sardinha and Ruy L. Milidiú} }