This volume, in a sense, aims at reflecting the qualities of the honoree and it does so in two respects. On the one hand, it covers a great variety of subdisciplines of economics. On the other hand, the book ranges from theoretical and mathematical economics to hands-on applied analyses of economic-policy issues. All essays are driven by the aspiration to better understand the economy and to draw relevant conclusions for economic policy. The book is divided into five parts dealing with the German economy, European economic issues, global markets, international trade theory and policy, and natural resources and the environment Contents: Part I: The German Economy.- Part II: European Economic Issues.- Part III: Global Markets and Global Economic-Policy Issues.- Part IV: International Trade: Theory and Policy.- Part V: Environment and Natural Resources.- Bibliography of Horst Siebert