We investigate the welfare impact of parallel imports using a large panel data set containing monthly information on sales, ex-factory prices, and further product characteristics for all 700 antidiabetic drugs sold in Germany between 2004 and 2010. We estimate a two-stage nested logit model of...

This paper investigates the effect of a housing company's size on the outcome of energetic refurbishment. We argue that economies of scale, economies of scope and effects of learning have an impact on the production of energy-efficient housing services. To test our hypothesis, we use unique data...