During the last years more and more discussions came up about the contribution of technology-oriented and technology-intensive industries for employment and economic development. One reason for some of the contradictory evaluations of technology-intensive industries can be attributed to...

The influence of environmental policy on innovative behaviour of companies has so far received little attention in scientific discourse. Based on recent literature, the paper analyses the impact of requirements, levies, permits, liability laws, and the EC-eco- audit regulation with respect to...

We present a sticky-price model incorporating heterogeneous firms and systematic firm-level productivity trends. Aggregating the model in closed form, we show that it delivers radically different predictions for the optimal inflation rate than canonical sticky price models featuring homogenous...

Motivated by the financial crisis of 2007-2009 several papers have provided explanations for why liquidity may dry up during market stress. This paper also looks at this issue but focuses on the question as to why the liquidity crunch was not uniform across maturities. As funding pressures were...

"This paper reviews the recent theoretical literature on heterogeneous firms and trade, which emphasizes firm selection into international markets and reallocations of resources across firms. We discuss the empirical challenges that motivated this research and its relationship to traditional...