Publications des institutions partenaires
Bottleneck regulation in telecommunications, railways and post
Various regulatory remedies deal with monopolistic bottlenecks in network industries. In telecommunications,
railways and post, the European regulatory provisions seem appropriate.
Institution partenaire
English / 01/09/2009
Behavioral heterogeneity in dynamic search situations: Theory and experimental evidence
This paper presents models for search behavior and provides experimental evidence that behavioral heterogeneity in search is linked to heterogeneity in individual preferences. Observed search behavior is more consistent with a new model that assumes dynamic updating of utility reference points than with models that are based on expected-utility maximization. Specifically, reference...
Institution partenaire
English / 01/09/2009
A behavioral account of the labor market: the role of fairness concerns
In this paper, we argue that important labor market phenomena can be better understood if one takes (a) the inherent incompleteness and relational nature of most employment contracts and (b) the existence of reference-dependent fairness concerns among a substantial share of the population into account. Theory shows and experiments confirm that, even if fairness concerns were to exert...
Institution partenaire
English / 01/09/2009
The value of information for auctioneers
An auctioneer wants to sell an indivisible object to one of multiple bidders, who have private information about their valuations of the object. A bidder's information structure determines the accuracy with which the bidder knows her private valuation. The main result of the paper is that the auctioneer's revenue is a convex function of bidders' information structures...
Institution partenaire
English / 01/09/2009
Demand for Redistribution, Support for the Welfare State, and Party Identification in Austria
This paper describes subjective wage inequality and the demand for redistribution in Austrianusing individuals' estimates of occupational wages from the International Social SurveynProgram. Although these estimates differ widely across individuals, the data clearly show that most individuals would like to decrease wage inequality, relative to the level of inequality which they...
Institution partenaire
English / 01/09/2009
Capping Risk Adjustment?
When premiums are community-rated, risk adjustment (RA) serves to mitigate competitive insurers’ incentive to select favorable risks. However, unless fully prospective, it also undermines their incentives for efficiency. By capping its volume, one may try to counteract this tendency, exposing insurers to some financial risk. This in term runs counter the quest to refine the RA...
Institution partenaire
English / 01/09/2009
How to Extend a Model of Probabilistic Choice from Binary Choices to Choices among More Than Two Alternatives
This note presents an algorithm that extends a binary choice model to choice among multiple alternatives. Both neoclassical microeconomic theory and Luce choice model are consistent with the proposed algorithm. The algorithm is compatible withnseveral empirical findings (asymmetric dominance and attraction effects) that cannot be explained within standard models.
Institution partenaire
English / 01/09/2009
Cournot Oligopoly and Concavo-Concave Demand
The N-firm Cournot model with general technologies is reviewed to derive generalized and unified conditions for existence of a pure strategy Nash equilibrium. Tight conditions are formulated alternatively (i) in terms of concavity of two-sided transforms of inverse demand, or (ii) as linear constraintsnon the elasticities of inverse demand and its first derivative. These conditions...
Institution partenaire
English / 01/09/2009
Demand Reduction and Preemptive Bidding inMulti-Unit License Auctions
Multi-unit ascending auctions allow for equilibria in which bidders strategically reduce their demand and split the market at low prices. At the same time, they allow for preemptive bidding by incumbent bidders in a coordinated attempt to exclude entrants fromnthe market. We consider an environment where both demand reduction and preemptivenbidding are supported as equilibrium...
Institution partenaire
English / 01/09/2009
Collusion in Auctions for Emissions Permits: An Experimental Study
Environmental markets have several institutional features that provide a new context for the use of auctions and that have not been studied previously. This paper reports on laboratory experiments testing three auction forms — uniform and discriminatory price sealed-bid auctions and an ascending clock auction. We test the ability of subjects to tacitly or explicitly collude in order...
Institution partenaire
English / 01/09/2009
A Correction and Re-Examination of 'Stationary Concepts for Experimental 2 x 2 Games'
Selten and Chmura (American Economic Review, June 2008, 98(3), 938-966) recently reported experimental laboratory results for 2 x 2 games with unique mixed-strategy equilibria used to compare Nash equilibrium with four other stationary concepts: quantal response equilibrium, action-sampling equilibrium, payoff-sampling equilibrium, and impulse balance equilibrium. They conclude that...
Institution partenaire
English / 01/09/2009
An Experimental Study of Jury Deliberation
We study the effects of deliberation on collective decisions. In a series of experiments, we vary groups' preference distributions (between common and conflicting interests) and the institutions by which decisions are reached (simple majority, two-thirds majority, and unanimity). When deliberation is prohibited, different institutions generate significantly different outcomes,...
Institution partenaire
English / 01/09/2009
Wise Crowds or Wise Minorities?
This paper reports results from social learning experiments where subjects choose between two options and each subject has a small chance of being perfectly informed about which option is correct. In treatment 'sequence', subjects observe the entire sequence of predecessors' choices while in treatment 'no-sequence' they only observe the number of times each...
Institution partenaire
English / 01/09/2009
Liquidity, Innovation and Growth
Many countries simultaneously suffer from high rates of inflation, low growth rates of per capita income and poorly developed financial sectors. In this paper, we integrate a microfounded model of money and finance into a model of endogenous growth to examine the effects of inflation and financial development. A novel feature of the model is that the market for innovation goods is...
Institution partenaire
English / 01/09/2009
Inflation and Unemployment in the Long Run
We study the long-run relation between money, measured by inflation or interest rates, and unemployment. We first document in the data a positive relation between these variables at low frequencies. We then develop a framework where unemployment and money are both modeled using microfoundations based on search and bargaining theory, providing a unified theory for analyzing labor and...
Institution partenaire
English / 01/09/2009
Outside Versus Inside Bonds: A Modigliani-Miller type result for liquidity constrained economies
When agents are liquidity constrained, two options exist — sell assets or borrow. We compare the allocations arising in two economies: in one, agents can sell government bonds (outside bonds) and in the other they can borrow (issue inside bonds). All transactions are voluntary,nimplying no taxation or forced redemption of private debt. We show that any allocation in the economy with...
Institution partenaire
English / 01/09/2009
Effects of Advertising and Product Placement on Television Audiences
Digital video recorder proliferation and new commercial audience metrics are making television networks’ revenues more sensitive to audience losses from advertising. There is currently limited understanding of how traditional advertising and product placement affectntelevision audiences. We estimate a random coefficients logit model of viewing demand for television programs, wherein...
Institution partenaire
English / 01/09/2009
Fine Tuning of Health Insurance Regulation: Unhealthy Consequences for an Individual Insurer
This paper sheds light on some unexpected consequences of health insurance regulation that may pose a big challenge to insurers’ risk management. Because mandated uniform contributions to health insurance trigger risk selection efforts risk adjustment (RA) schemes become necessary. A good deal of research into the optimal RA formula has been performed (Ellis and Van de Ven [2000]). A...
Institution partenaire
English / 01/09/2009
The Swiss external QA system: lessons learned over the past five years
The external quality assurance system in Switzerland focuses on institutional assessments. Periodic assessments of the internal quality assurance systems of the Swiss universities are mandatory and linked to the financing of the institutions. The OAQ successfully carried out the first cycle of such audits in 2003 – 4 which it then repeated in 2007 – 8. These audits have been well...
Institution partenaire
English / 01/09/2009
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