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Network Experiments

This paper provides a survey of recent experimental work in eco-nnomics focussing on social and economic networks.The experimentsnconsider networks of coordination and cooperation,buyer-seller net-nworks,and network formation.

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English / 01/05/2003

Änderungen von Vorsorgereglementen und wohlerworbene Rechte

L'auteur examine les modifications des règlements de prévoyance avant le versement de prestations. Le changement de rentes courantes n'est juridiquement pas justifiable - l'argument de l'augmentation de l'espérance de vie est matériellement faux.
Les rapports de prévoyance sont des relations contractuelles. Pour déployer des effets, l'abaissement...

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Deutsch / 01/05/2003

Testing Theories of Happiness

"Happiness research in economics takes reported subjective well-being as a proxynmeasure for utility and has already provided many interesting insights about human well-beingnand its determinants. We argue that future research on happiness in economics has a lot ofnpotential, but that it needs to be guided more by theory. We propose two ways to test theories ofnhappiness, and...

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English / 01/04/2003

Multiple Losses, Ex-Ante Moral Hazard, and the Non-Optimality of the Standard Insurance Contract

Under certain conditions the optimal insurance policy will offer full coverage above a deductible, as Arrow and others have shown long time ago. Interestingly, the same design of insurance policies applies in case of a single loss and ex-ante moral hazard. However, many insurance policies provide coverage against a variety of losses and the possibilities for the insured to affect the...

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English / 01/04/2003

Abstention because of Indifference and Alienation, and Its Consequences for Party Competition: A Simple Psychological Model

The basic idea behind this paper is that voters have to be able to distinguish the positions of the parties. Following Weber's Law this depends on the relative distance with respect to their own optimal position. Using such a measure a model of voter participation is developed which allows for abstention because of indifference as well as alienation. Two variants of this model...

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English / 01/04/2003

Portfolio Interrelationships and Financial Performance in the Context of European Firms

The linkage between the interrelationships of a firm's lines of business and corporate financial performance has been the subject of extensive research in the strategy field. Yet very little research has examined this key relationship within firms operating in Continental Europe. This study investigates firm relatedness and its further relationship to accounting and market-based...

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English / 01/04/2003

Experienced versus Decision Utility of Income: Relative or Absolute Happiness

A central finding in happiness research is low correlations between income and happiness. This is paradoxical since most people seem to attach a high value to a rise in their income. The various versions of this paradox can be explained in terms of rising aspirations (Easterlin 2001) and positional externalities (Frank 1997). However, econometric / statistical studies which test...

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Deutsch / 21/03/2003

The survival of the welfare state

This paper provides an analytical characterization of Markov perfect equilibria in a model with repeated voting, where agents vote over distortionary income redistribution. A key result is that the future constituency for redistributive policies depends positively on current redistribution, since this affects both private investments and the future distribution of voters. The model...

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English / 01/03/2003

Robustness and Real Consequences of Nominal Wage Rigidity

"Recent studies found evidence for nominal wage rigidity during periods of relatively high nominal GDP growth. It has been argued, however, that in an environment with low nominal GDP growth, when nominal wage cuts become customary, workers’ cuts would erode and, hence, firms would no longer hesitate to reduce nominal pay. If this argument is valid nominal wage rigidity...

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English / 01/03/2003

It's all about Connections: Evidence on Network Formation

We present an economic experiment on network formation, in which subjects can decide to form links to one another. Direct links are costly but being connected is valuable. The game-theoretic basis for our experiment is the model of Bala and Goyal (2000). They distinguish between two scenarios regarding the flow of benefits through a network, the so-called 1-way and 2-way flow model....

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English / 01/03/2003

Open source software development and the private-collective innovation model: Issues for organization science

Currently, two models of innovation are prevalent in organization science. The "private investment" model assumes returns to the innovator result from private goods and efficient regimes of intellectual property protection. The "collective action" model assumes that under conditions of market failure, innovators collaborate in order to produce a public good. The...

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English / 01/03/2003

Die duale Berufsbildung ist besser als ihr Ruf: eine übereilte Akademisierung schwächt den Standort Schweiz

Zur Steigerung der Schweizer Arbeitsproduktivität wird oft die Erhöhung der Studierendenzahl gefordert. Für die Autorin des folgenden Beitrags führt eine übereilte Akademisierung
in die falsche Richtung. Anzustreben seien vorerst eine Differenzierung der Hochschullandschaft und die Sicherstellung der Schweizer Berufsbildung. Für die Effizienz
der dualen Berufsbildung...

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Deutsch / 22/02/2003

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