This paper compares technologies across space and time on the basis of factual and counterfactual substitution elasticities and argues that differences in estimated substitution elasticities should be decomposed into two counterfactual components. While the first component is designed to...

Any researcher would certainly agree with Hamermesh's (1993:34) intuition about separability that the ease of substitution between any two production factors should be unaffected by a third factor that is separable from the others. This paper emphasizes that such a notion of separability needs...

Focusing on travel survey data from Germany, this paper investigates the determinants of automobile travel, with the specific aim of quantifying the effects of fuel prices and fuel economy. The analysis is predicated on the notion that car mileage is a two-stage decision process, comprising the...

The paper presents the German block of the ESCB multi-country model. It builds on previous modelling work on the Area Wide Model and other country blocks of the ESCB multicountry-model. Whilst being analogous to these models in following a common modelling approach and the same theoretical...

In this paper I investigate the causal returns to education for different educational groups in Germany by employing a new method by Klein and Vella (2010) that bases identification on the presence of conditional heteroskedasticity. Compared to IV methods, key advantages of this approach are...

The majority of audit fee research has identified that BIG-N audit firms charge higher fees than other auditors. To detect the reasons for such a fee premium in a concentrated audit market it is necessary to compare audit pricing in the concentrated market to pricing behavior in a competitive...

In this paper I investigate the causal returns to education for different educational groups in Germany by employing a new method by Klein and Vella (2010) that bases identification on the presence of conditional heteroskedasticity. Compared to IV methods, key advantages of this approach are...

This paper shows that after older workers experience periods of non-employment, earnings losses increase. Before non-employment, older employees have relatively higher earnings compared to younger employees without employment interruptions. This earnings advantage turns into a strong earnings...