This book, dedicated to Professor Giulio Codognato, presents a collection of essays exploring a range of issues in general equilibrium theory under perfect and imperfect competition, game theory, and social choice theory. It offers an up-to-date overview of advanced research in these fields and will appeal to scholars and students working on these topics, as well as to readers with an interest in the foundations of economic analysis.

Francesca Busetto is Professor of Economics at the Department of Economics and Statistics, University of Udine, Italy.

Sayantan Ghosal is Adam Smith Chair in Political Economy at the Adam Smith Business School, University of Glasgow, United Kingdom.

Ludovic Julien is Professor of Economics at the University of Paris Nanterre, France, and a member of EconomiX.

Simone Tonin is Associate Professor at the Department of Economics and Statistics, University of Udine, Italy.