Essay 1: We reexamine the effect of economic development on the level of democracy based on the data sets of Acemoglu et al. (2008) with a novel regression specification utilizing a zero-one-inflated beta distribution for the response variable democracy. Contrary to the results of Acemoglu et...

In many settings, the variable of interest is a proportion with high concentration of data at the boundaries. This paper proposes a regression model for a fractional variable with nontrivial probability masses at the extremes. In particular, the dependent variable is assumed to be a mixed random...

Diese Dissertation zielt darauf ab, die komplexen Wechselbeziehungen zwischen den verschiedenen Faktoren, die den Prozess der Abholzung der Tropenwälder beeinflussen, durch die Untersuchung dieser Problematik in der Nähe des Lore Lindu National Parks in Zentral-Sulawesi, Indonesien zu...