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Living in Two Neighborhoods - Social Interactions in the Lab

Field evidence suggests that agents belonging to the same group tend to behave similarly,ni.e., behavior exhibits social interaction effects. Testing for such effects raises severenidentification problems. We conduct an experiment that avoids these problems. The mainndesign feature is that each subject simultaneously is a member of two randomly assigned andneconomically identical…

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English / 01/05/2003

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

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

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

The Role of Income Aspirations in Individual Happiness

Does individual well-being depend on the absolute level of income and consumption or is it relative to one's aspirations? In a direct empirical test, it is found that higher income aspirations reduce people's utility, ceteris paribus. Individual data on reported satisfaction with life are used as a proxy measure for utility, and income evaluation measures are applied as…

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English / 01/02/2003

Risk adjustment and risk selection on the sickness fund insurance market in five European countries

From the mid-1990s citizens in Belgium, Germany, Israel, the Netherlands and Switzerland have a guaranteed periodic choice among risk-bearing sickness funds, who are responsible for purchasing their care or providing them with medical care. The rationale of this arrangement is to stimulate the sickness funds to improve efficiency in health care production and to respond to consumers…

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English / 01/01/2003

Risk adjustment in Switzerland

In Switzerland the new law on health insurance, effective since 1996, introduced pro competitive changes in the market of sickness funds. The legislator expected high mobility between sickness funds of both healthy and sick insured as open enrolment was introduced with the new law. That is why the risk adjustment scheme, that was already introduced 1993, was limited until 2005.…

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English / 01/01/2003

Workplaces in the primary economy and wage pressure in the secondary labor market

This paper develops a two-sector general-equilibrium model in which firms in the primary economy have to create workplaces prior to production and product market competition. For this, we introduce the endogenous sunk-cost approach with two-stage decisions of firms from IO in the macro labor literature. By hypothesizing that technological change has lowered marginal costs but has…

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English / 01/01/2003

Endogenous Technological Spillovers: Causes and Consequences

We develop a new approach to endogenizing technological spillovers. We analyze a game in which firms can first invest in cost-reducing R&D, then compete on the human-capital market for their knowledge-bearing employees, and finally enter the product market. If R&D employees change firms, spillovers arise. We show that technological spillovers are most likely when they…

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English / 01/01/2003

Endogenous spillovers and incentives to innovate

We present a new approach to endogenizing technological spillovers. Firms choose levels of a cost-reducing innovation from a continuum before they engage in competition for each other's R&D-employees. Successful bids for the competitor's employee then result in higher levels of cost reduction. Finally, firms enter product market competition. We apply the approach to the…

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English / 01/01/2003

Lobbying against Environmental Regulation vs. Lobbying for Loopholes

We analyze the determinants of environmental policy when two firms engage in two types of lobbying against a restriction on allowed pollution: General lobbying increases the total amount of allowed pollution, which is beneficial for both firms. Private lobbying increases the individual pollution standard of the lobbying firm, but has a negative or zero effect on the allowed emissions…

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English / 01/01/2003

On the (in)efficiency of Swiss hospitals

The efficiency of hospitals is of interest to health insurers, government authorities and hospital management itself. However, econometric methods for determining (in)efficiency have severe drawbacks since hospitals are multiproduct firms and because the duality between production and cost functions cannot be assumed. In this work, non-parametric, deterministic data envelopment…

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English / 01/01/2003

Comparing migrants to non-migrants: the case of Dutch migration to New Zealand

We analyse post-war Dutch migration to New Zealand. We document that history, reflect on analytical and econometric modelling and then combine a sample of Dutch migrants in New Zealand with a representative sample of Dutch in The Netherlands to estimate wage equations and the determinants of the migration decision. We use the results for ex post evaluation of the migration decision…

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English / 01/01/2003

Outsourcing and skill-specific employment in a small economy: Austria after the fall of the Iron Curtain

We set up a model, in which firms in a small industrialized country outsource part of their production to a foreign economy, which is rich in low-skilled labour. We analyse, how a decline in trade costs affects outsourcing activities and the production structure in the small economy. A stimulation of cross-border outsourcing raises wage dispersion and, if labour markets are unionized…

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English / 01/01/2003

Vertical Integration and Distance to Frontier

We construct a model where the equilibrium organization of firms changes as an economy approaches the world technology frontier. In vertically integrated firms, owners (managers) have to spend time both on production and innovation activities, and this creates managerial overload, and discourages innovation. Outsourcing of some production activities mitigates the managerial overload…

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English / 01/01/2003

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