'A very accessible introduction to rational choice theory and to the work of key scholars within this tradition. Unusually balanced and thoughtful in its approach, it highlights both the strengths and limits of rational choice not only in particular substantive areas but, with striking originality, in terms of its philosophical underpinnings.' - Jack Knight, Washington University, USA 'A very thorough and accessible introduction that will be welcomed for its careful and clear exposition of the ideas of key contributors to the field and of the developments and controversies to which their ideas have given rise.' Brian Barry, Emeritus Professor, London School of Economics and Political Science, UK and Columbia University, USA