We examine how emission taxes should be refunded to firms in order to create optimal incentives to invest in cleaner technologies. Since refunds cannot be made dependent on investments, an alternative way is to give back taxes to firms according to market shares. We show that universally...

We analyze whether different learning abilities of firms with respect to general equilibrium effects lead to different levels of unemployment. We consider a general equilibrium model where firms in one sector compete à la Cournot and a real wage rigidity leads to unemployment. If firms consider...

Soll die Industrie- und Wettbewerbspolitik zentral oder dezentral, durch die Europäische Gemeinschaft oder auf regionaler Ebene betrieben werden? Das Werk behandelt die Frage wirtschaftstheoretisch und leistet damit einen wesentlichen Beitrag für die politische Diskussion. Für Volkswirte im...

We study the incentives of a downstream firm that sources its core input from a vertically integrated supplier to license its patented technology to an external firm. Licensing transforms the licensee into both a direct downstream competitor and a customer of the supplier. The vertically...