This dissertation consists of three experimental studies that aim at contributing to a better understanding of behavior within contractual relationships—in particular, if information asymmetries, incentive issues and a lack of formal institutions make exchange more difficult and risky....

This dissertation extends the understanding of asymmetric group behavior in the provision of public goods. Previous studies, using an asymmetric framework, have so far focused on situations where all players profit form the social optimum. The discussion in the first paper breaks with this...

Diese Dissertation beschreibt Marktverzerrungen auf mehreren Ebenen, die entweder aufgrund von Fehlfunktionen oder durch Interventionen politischer Art entstehen. Die Fehlfunktionen schließen einerseits Märkte mit imperfektem Wettbewerb, und andererseits Versagen auf anderweitig vollkommenen...

Despite remarkable advances, overcoming rural poverty and food insecurity in developing countries remains one of the biggest challenges of the 21st century. Increasing production and income opportunities in the agricultural sector is one of the key factors to achieve these goals. While...

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...

Over the last five decades, the growing demand for ecosystem services, such as food, water and fuel has led to the most rapid and extensive changes in ecosystems in human history. Examples for these transformations include the agricultural intensification at the habitat and landscapes scale. In...

Biomass is still the dominant source of energy used by most rural households in the developing world. Current use patterns have been linked to adverse effects on forest resources. Alternative fuels such as kerosene could mitigate these negative effects. In order to design policies that enhance...