The portfolio selection problem is traditionally modelled by two different approaches. The first one is based on an axiomatic model of risk-averse preferences, where decision makers are assumed to possess an expected utility function and the portfolio choice consists in maximizing the expected...

How does risk tolerance vary with stake size? This important question cannot be adequately answered if framing effects, nonlinear probability weighting, and heterogeneity of preference types are neglected. We show that, contrary to gains, no coherent change in relative risk aversion is observed...

This paper presents a new incentive compatible method for measuring confidence in own knowledge. This method consists of two parts. First, an individual answers several general knowledge questions. Second, the individual chooses among three alternatives: 1) one question is selected at random and...

Risk aversion is traditionally defined in the context of lotteries over monetary payoffs. This paper extends the notion of risk aversion to a more general setup where outcomes (consequences) may not be measurable in monetary terms and people may have fuzzy preferences over lotteries, i.e. they...

In the television show Affari Tuoi a contestant is endowed with a sealed box containing a monetary prize between one cent and half a million euros. In the course of the show the contestant learns more information about the distribution of possible monetary prizes inside her box. Consider two...

In the standard CAPM with a riskless asset we give a sufficient condition for uniqueness. This condition is a joint restriction on the agents' endowments and their preferences which is compatible with non-increasing absolute risk aversion and which is in particular satisfied with constant...

We consider a closed economy where a risk neutral bank competes with a competitive bond market. Firms can finance a risky project either by a bank credit or by issuing a bond which is directly sold to risk averse investors who also can hold safe deposits at the bank. We show that a monopolistic...

Intergenerational inequality and old-age poverty are salient issues in contemporary China. China’s aging population threatens the fiscal sustainability of its pension system, a key vehicle for intergenerational redistribution. We analyze the positive and normative effects of alternative...

Parental leave regulations in most OECD countries have two key policy instruments: job protection and cash benefits. This paper studies how mothers’ return to work behavior and labor market outcomes are affected by alternative mixes of these key policy parameters. Exploiting a series of major...

Two pension reforms in Austria increased the early retirement age from 60 to 62 for men and from 55 to 58.25 for women. The reforms reduced early retirement by 18.9 percentage points among affected men aged 60-62 and by 22.3 percentage points among affected women aged 55-58.25. The associated...