ZEW Discussion Papers

Building on real options literature, this study shows that the use of a staged approach for the management of innovation projects affects the innovation output of firms differently depending on firm…

Employment tax credit programs have been repeatedly used during economic crises, although their usefulness is empirically contestable. The objective of this paper is to quantify the tax effects of employment tax…

We analyze the relationship between early-career unemployment and prime-age earnings with German administrative linked employer-employee data. The careers of more than 720,000 male apprenticeship graduates from…

We survey the literature on the link of labour market related outcomes to individ-ual physical activity and sports participation. The first part of the survey is devoted to the individual participation decision…

This paper explores the effect of bargaining in vertical relationships on the profitability of suppliers’ R&D investments. Studies on the relationship between R&D and firm profitability mostly concentrate on the…

This paper examines the effects of combining an international cap-and-trade scheme with national carbon taxes. We consider a two-country stochastic partial equilibrium model with log-normally distributed…

Fibre-deployment of next-generation communications networks is currently a major challenge for investing firms as well as for national regulators and is also subject to hot debates at EU level. This work…

We hypothesize a particular source of cartel instability and explore its relevance to understanding cartel dynamics. The cartel instability is rooted in the observation that, upon cartel formation, the relative…

We analyze different alternatives how a common unemployment insurance system for the euro area (EA) could be designed and assess their effectiveness to act as an insurance device in the presence of asymmetric…