Exportkreditgarantien und –bürgschaften in der Diskussion

Öffentlich gesicherte Exportgarantien und –bürgschaften bilden die Grundlage der staatlichen Ausfuhrförderung in Deutschland. Wie sind Exportkredite aus ordnungspolitischer Sicht zu bewerten? Welche Risiken werden in der Praxis abgedeckt? Gibt es Anlass, die mittel– und langfristige Exportfinanzierung der Unternehmen zu reformieren?Dr. Karl–Wolfgang Menck, 63, ist wissenschaftlicher Mitarbeiter im Forschungsschwerpunkt Handel und Entwicklung im Hamburgischen Welt–Wirtschafts–Archiv (HWWA) in Hamburg.     

Fragen der deutschen Währungspolitik

Vortrag vor der Nederlandsche Economische Hoogeschool in Rotterdam am 16. Oktober 1959.     

OPTIMAL RULES FOR PATENT RACES*

There are two important rules to patent races: minimal accomplishment necessary to receive the patent and the allocation of the innovation benefits. We study the optimal combination of these rules. A planner, who cannot distinguish between competing firms in a multistage innovation race, chooses the patent rules by maximizing either consumer or social surplus. We show that efficiency cost of prizes is a key consideration. Races are undesirable only when efficiency costs are low, firms are similar, and social surplus is maximized. Otherwise, the optimal policy involves a race of nontrivial duration to spur innovation and filter out inferior innovators.     

On the impossibility of achieving no regrets in repeated games

Regret-minimizing strategies for repeated games have been receiving increasing attention in the literature. These are simple adaptive behavior rules that lead to no regrets and, if followed by all players, exhibit nice convergence properties: the average play converges to correlated equilibrium, or even to Nash equilibrium in certain classes of games. However, the no-regret property relies on a strong assumption that each player treats her opponents as unresponsive and fully ignores the opponents’ possible reactions to her actions. We show that if at least one player is slightly responsive, it is impossible to achieve no regrets, and convergence results for regret minimization with responsive opponents are unknown.     

The impact of the euro crisis on Switzerland

The euro area crisis is the main external factor threatening the Swiss economy. In 2010 and 2011, the Swiss franc was rapidly appreciating against the euro, causing a drop in exports, losses for the tourism business and a rise in unemployment. This paper gives an overview of developments in the euro area and explains the reasons for the strength of the franc, the effects it had on the economy and the measures taken to curtail its appreciation.     

Konjunktur- und Strukturkomponenten der Länderhaushalte

Deutschland hat im August 2009 eine Schuldenregel im Grundgesetz verankert. Die Bundesl?nder müssen bis 2020 ihre Ausgaben grunds?tzlich ohne Kredite fi nanzieren. Konjunkturbedingte Defi zite sind weiterhin m?glich, die in konjunkturell guten Zeiten ausgeglichen werden müssen. Das RWI hat ein Verfahren entwickelt, wie die Konjunktur- und Strukturkomponenten der Landeshaushalte berechnet werden sollten.