We consider a neoclassical growth model with quasi-hyperbolic discounting under Kantian optimization: each temporal self acts in a way that they would like every future self to act. We introduce the notion of a Kantian policy as an outcome of Kantian optimization in a given class of policies. We...

Both data and people's self-reports reveal that there is an undersaving problem. Behavioral economics seeks to explain this phenomenon with the concept of hyperbolic discounting. In essence, short-term actions are inconsistent with long-term goals. This is applied to the German pension system in...

It has been argued that hyperbolic discounting of future gains and losses leads to time-inconsistent behavior and thereby, in the context of health economics, not enough investment in health and too much indulgence of unhealthy consumption. Here, we challenge this view. We set up a life-cycle...

It has been argued that hyperbolic discounting of future gains and losses leads to time-inconsistent behavior and thereby, in the context of health economics, not enough investment in health and too much indulgence of unhealthy consumption. Here, we challenge this view. We set up a life-cycle...

It has been argued that hyperbolic discounting of future gains and losses leads to time-inconsistent behavior and thereby, in the context of health economics, not enough investment in health and too much indulgence of unhealthy consumption. Here, we challenge this view. We set up a life-cycle...

We prove that the standard quasi-geometric discounting model used in dynamic consumer theory and political economics does not possess continuous Markov perfect equilibria (MPE) if there is a strictly positive lower bound on wealth. We also show that, at points of discontinuity, the decision...

Der Faktor Zeit spielt in der ökonomischen Theorie eine wichtige Rolle - intertemporale Entscheidungen sind in allen Bereichen der Wirtschaftstheorie und -politik relevant. In der überwiegenden Zahl der Fälle stützt man sich dabei auf das sogenannte Discounted-utility-Modell (DU-Modell), in...