This paper evaluates the performance of alternative estimation methods for multiplicative and log models with heteroskedasticity. Contrary to Santos Silva and Tenreyro (2006), the results of a simulation study indicate that the Pseudo Poisson Maximum Likelihood estimator (PPML) is not always the...

We examine the long-run relationship between fertility, mortality, and income using panel cointegration techniques and the available data for the last century. Our main result is that mortality changes and growth of income per capita account for a major part of the fertility change...

The five chapters of this dissertation deal with the topic of trade under different kinds of uncertainty. In the first chapter, the impact of exchange rate uncertainty on exports of European countries is investigated with a special focus on short-term effects, sectoral differences and the impact...