In this book, internationally renowned scholars, including two Nobel Laureates, have been drawn together to celebrate Arnold Heertje's rich contribution to the field of economics. Their essays reflect his influence in the areas of economic theory and policy. In particular, they follow in the tradition of his work on oligopoly and price theory, welfare theory and policy, growth theory, environmental economics, technical change and the history of economic thought and methodology.The contributors offer penetrating insights into the structure and functioning of different types of market structures and the character of technical change. In addition, they address current topics such as the recent problems in East Asian economies, the money supply in the European Monetary Union and economic development. Finally, they pay tribute to Arnold Heertje's work on the history of economic thought, discussing the writings of David Ricardo, the German historical school, Herbert Robinson, Alfred Marshall and Herbert Foxwell. This book will attract economic theorists, and scholars and students who are interested in the history of economic thought or in empirical subjects such as the policy implications of studies of labour markets, property rights and European Monetary Union.