Eine der größten Herausforderungen des 21. Jahrhunderts ist die nachhaltige Energieversorgung von Bevölkerung und Wirtschaft. Biomass-to-Liquid-Kraftstoffe (BtL) haben das Potenzial sinnvolle Alternativen zu fossilem Kraftstoff zu sein und können somit einen wichtigen Beitrag zur...

This paper examines the effects that purchased services and imported intermediate materials have on the labour demand for different skills in the manufacturing sector. We derive and estimate a factor demand system based on the generalised Box-Cox cost function nesting both the normalised...

International trade patterns at the product level are surprisingly dynamic. The majority of trade relationships exist for just a few, often only one to three, years. In this paper, I examine empirically the duration in German import trade at the 8-digit product level from 1995 to 2005. I find...