We prove that for any incomplete market and any concave utilityfunction the marginal propensities to consume and to save are alwayspositive. Furthermore, we introduce a class of incomplete markets thatincludes almost all well known examples of market incompleteness infinance and macroeconomics....

We consider consistent tests for stochastic dominance efficiency at any order of a given portfolio with respect to all possible portfolios constructed from a set of assets. We justify block bootstrap approaches to achieve valid inference in a time series setting. The test statistics are computed...

Starting from the reward-risk model for portfolio selection introduced in De Giorgi (2004), we derive the reward-risk Capital Asset Pricing Model (CAPM) analogously to the classical mean-variance CAPM. The reward-risk portfolio selection arises froman axiomatic definition of reward and risk...

In this paper we experimentally test skewness seeking at the individuallevel. Several prospects that can be ordered with respect to the third-degreestochastic dominance (3SD) criterion are ranked by the participants of theexperiment. We find that the skewness of a distribution has a...

We study how the framework of classical game theory changes whenthe preferences of the players are described by Prospect Theory (PT)and Cumulative Prospect Theory (CPT) instead of Expected UtilityTheory. Specically, we study the inuence of framing eects and probabilityweighting on the existence...

Defined-contribution plans represent a major organizational form for investors´ retirement savings. Today more than one third of all workers are enrolled in 401K plans.(...)

In this paper, I present a theory of dynamic economic growth, business cycles, and asset pricing that integrates (1) Marx's idea (and emphasized by Klein) of a two-class heterogeneity of the ownership structure of physical capital and human capital in a capitalist society, (2) Keynes' idea of...

The large spread between equity returns and risk free rates observed in most stock markets (the "equity premium puzzle") has been subject of intense debates. Two main families of models claim to solve this puzzle: habit formation models and loss aversion models. The goal of this paper is to...

This paper studies the Cass-Koopmans-Ramsey model of optimal economic growth with a representative agent whose preferences for consumption can be gradually varied between the standard CES case and Kahneman and Tversky's prospect utility. The numerical analysis of a specific parametrization shows...

Prospect theory has found an increasing attention in many fields of economics. However, it has scarcely been addressed in a macroeconomic growth model. In an earlier paper we introduced prospect theory into a stochastic growth model. This paper focuses on linking the Euler equation induced by...