This thesis contains four studies in applied microeconomics. The first chapter studies the question of how risk and religiosity are related. The second chapter is a field experiment with a gym, with a policy intervention to help people go more often to the gym. The third chapter examines how the...

We conducted a large-scale household survey in November 2020 to study how altering the time frame of a message (temporal framing) regarding an imminent positive income shock affects consumption plans. The income shock derives from the abolishment of the German solidarity surcharge on personal...