Happiness economics has become an established field of research, and happiness and life satisfaction are increasingly considered important policy goals by governments around the globe. The Japanese government has recently started to follow this trend by regularly collecting data on personal...

We study whether raising instructional time can crowd out student pro-social behaviour. To this end, we exploit a large educational reform in Germany that has raised weekly instructional time for high school students by 12.5% as a quasi-natural experiment. We find that this rise has a negative...