The thesis contains three essays in the field of environmental policy. In the first paper, we study the relationship between the agri-environmental payments for farmers and wildlife. The effects of EU agri-environmental programs (AEPs) on the environment have been mixed. Spending on AEPs has...

This paper constructs estimators for panel data regression models with individual specific heterogeneity and two-sided censoring and truncation. Following Powell (1986) the estimation strategy is based on moment conditions constructed from re-censored or re-truncated residuals. While these...