There is a successful and growing number of studies published in top-economics journals that exploit the division and re-unification of Germany as a natural experiment for analysing the effects of political regimes on economic behaviour. One strand of the literature shows that socialism shaped...

We analyze individuals with heterogeneous time-inconsistent preferences that consume sin goods and make a savings decision. A government may tax the sin good and provide mandatory health insurance. Due to time-inconsistency, the individual sin good and savings choices in ict internalities. Due...