This volume focuses on modern economic analyses of deception in markets. The contributors offer a systematic account of how different approaches to modern economics deal with dishonesty and cheating in the marketplace. The particular focus is on economic concepts such as rationality and behaviour in relation to deception. Analyses are presented from the perspective of standard economic frameworks (i.e. game theory, new institutional economics, new classical macroeconomics) while behavioural developments (i.e. behavioural economics and finance) are referred to, challenging the basic economic concepts of rationality and self-interest. Finally, anthropological findings are used to contrast these economic conceptions of deception.