Over the past few years, there has been a steadily increasing interest on the part of economists in happiness research. We argue that reported subjective well-being is a satisfactory empirical approximation to individual utility and that happiness research is able to contribute important insights for economics. We report how the economic variables income, unemployment and inflation affect happiness as well as how institutional factors, in particular the type of democracy and the extent of government decentralization, systematically influence how satisfied individuals are with their life. We discuss some of the consequences for economic policy and for economic theory.
Politik und öffentliches Bewusstsein werden zunehmend durch ökonomische Theorien und Handlungsvorschläge mitbestimmt. Kaum ein anderes erkenntnis- und handlungsleitendes Modell hat daher einen vergleichbaren Einfluss wie das Konzept des Homo Oeconomicus. Durch die Entwicklung experimenteller Methoden ist es möglich, die Annahmen dieses Konzepts unter kontrollierten Laborbedingungen mit dem tatsächlichen Handeln von Individuen zu vergleichen. In der vorliegenden Arbeit werden zunächst verschiedene Experimentalstudien diskutiert, die eindeutig belegen, daß der Homo Oeconomicus weitaus weniger universell ist, als gemeinhin angenommen. Die Mehrheit der Experimentalteilnehmer verhält sich reziprok, d.h. sie belohnt faires Verhalten und bestraft unfaires Verhalten, selbst wenn dies mit Kosten verbunden ist. Der Nachweis reziproken Verhaltens hat weitreichende Konsequenzen für die ökonomische Politikberatung.
Given the USA`s refusal to ratify there is little hope for the Kyoto agreement on curbing CO2 emissions. This paper thus pledges for a national energy policy beyond Kyoto based on local external effects stemming from the combustion of fossil fuels. Due to varying external effects a national policy will differentiate energy taxes between fuels. Using Swiss estimates of external effects it is shown that a national policy would fulfill the Kyoto goal as a secondary benefit. Moreover, a nationally based fossil fuel policy would affect the scope for an international trade of CO2 emission rights, as a net-buyer of emission rights will loose from participating in such a trade.
The burning of fossil fuels not only causes CO2 emissions but at the same time impairs local environmental quality such as ambient air quality. The present paper analyzes the possible distortion arising from international trade in CO2 emissions when local externalities persist. It is theoretically derived that the maximal possible distortion is determined by the difference in factor endowment and population density of the trading regions. Moreover, an empirical illustration for Switzerland shows that a rich country buying emission rights sustains a welfare loss.
"People not only obtain utility from actual outcomes but also from the conditions which lead to these outcomes. The paper proposes an economic concept of this notion of procedural utility. Preferences beyond outcome can be manifold. We distinguish proceduralnutility people get from institutions as such, i.e. from how allocative and redistributive decisions are taken, procedural utility from activities towards which people have an intrinsic attitude and procedural utility from the way being treated in interaction with other people. In an empirical application, it is studied whether people gain procedural utility fromnparticipating in the political decision-making process itself, irrespective of the outcome.nUtility is measured by individuals’ reported subjective well-being. We find that participation rights provide procedural utility in terms of a feeling of self-determination and influence. In contrast, actual participation and use of participation rights does not."
Most economic models are based on the self-interest hypothesis that assumes that all people are exclusively motivated by their material self-interest. In recent years experimental economists have gathered overwhelming evidence that systematically refutes the self-interest hypothesis and suggests that many people are strongly motivated by concerns for fairness and reciprocity. Moreover, several theoretical papers have been written showing that the observed phenomena can be explained in a rigorous and tractable manner. These theories in turn induced a new wave of experimental research offering additional exciting insights into the nature of preferences and into the relative performance of competing theories of fairness. The purpose of this paper is to review these recent developments, to point out open questions, and to suggest avenues for future research.
The paper considers the evolution of portfolio rules in markets with stationary returns and endogenous prices. The ultimate success of a portfolio rule is measured by the wealth share the rule is eventually able to conquer in competition with other portfolio rules. We give necessary and sufficient conditions for portfolio rules to be evolutionary stable. In the case of i.i.d. returns we identify a simple portfolio rule to be the unique evolutionary stable strategy. Moreover we demonstrate that mean-variance optimization is not evolutionary stable while the CAPM-rule always imitates the best portfolio rule and survives.
The present paper applies a theoretical two-sector three-factor model to analyze a variety of energy tax reforms with the common feature of at least partly exempting the energy-intensive export sector from the tax. As a result, all scenarios with exemptions reduce energy less than the non-discriminating textbook version of the energy tax. Moreover, in the two scenarios that exemplify typical attributes of the tax reforms in Germany and Denmark, an increase in total energy use is possible. This is due to a positive output effect resulting from a substitution of the energy-intensive for the labor-intensive commodity.
We show that concerns for fairness may have dramatic consequences for the optimal provision of incentives in a moral hazard context. Incentive contracts that are optimal when there are only selfish actors become inferior when some agents are concerned about fairness. Conversely, contracts that are doomed to fail when there are only selfish actors provide powerful incentives and become superior when there are also fair-minded players. These predictions are strongly supported by the results of a series of experiments. Furthermore, our results suggest that the existence of fair actors may be an important reason why many contracts are left deliberately incomplete.
In the incomplete markets model with numeraire asset and a single consumption good we show that, even with homothetic preferences, on compact sets of prices Continuity, Walras' identity and Homogeneity characterize the properties of market excess demand. This result is proved by an extension of Mantel (1976) to the case of incomplete markets.
