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(Why) Are Economists Different?

After presenting casual evidence of the difference between economists and the rest of the population, I review the survey and experimental evidence on this topic during the last 20 years. I then ask whether these results are applicable to real world situations. To consider this, examples of referenda results in Switzerland are presented where the citizens decided against...

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English / 01/09/2005

Kostenvergleich zwischen zwei Kombinationstherapien gegen Hepatitis C mit pegylierten Interferonen und Ribavirin

Die Wirksamkeit und Sicherheit der beiden in der Schweiz zur Behandlung der Hepatitis C zugelassenen Kombinationstherapien (Pegasys®/Copegus®, PAC; PegIntron®/Rebetol®, PIR) ist sehr ähnlich. Das Ziel dieser Arbeit ist, die Kosten der beiden Therapien zu vergleichen und ihren kostengünstigsten Einsatz zu definieren. Die Durchschnittskosten für Genotyp-1-Patienten liegen zwischen CHF...

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Deutsch / 10/08/2005

Erdbebenversicherung: Herausforderungen für den Schweizer Versicherungsmarkt

Naturkatastrophen wie Erdbeben sind typische Risiken mit einer geringen Wahrscheinlichkeit, das Schadenausmass jedoch kann riesig sein. In den vergangenen Jahrzehnten sind Schäden aus Erdbeben sowohl in der Häufigkeit wie auch im Ausmass gestiegen. Da Erdbeben ein seltenes Ereignis darstellen, besteht zudem ein mangelndes Interesse an Investitionen in präventive Massnahmen und...

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Deutsch / 03/08/2005

Banking Regulation without Commitment to Audit

We consider a regulator providing deposit insurance to a bank with private information about its investment portfolio. As typical in practice, we assume that the regulator does not commit to auditing afternany risk report from the bank. We first show that the optimal contract can be implemented through a direct revelation mechanism. We also show that, at the optimal contract, a high...

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English / 01/08/2005

Individual Irrationality and Aggregate Outcomes

There is abundant evidence that many individuals violate the rationality assumptionsnroutinely made in economics. However, powerful evidence also indicates that violations ofnindividual rationality do not necessarily refute the aggregate predictions of standard economicnmodels that assume full rationality of all agents. Thus, a key question is how the interactions between rational...

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English / 01/08/2005

Switching Costs, Firm Size, and Market Structure

In many markets, homogenous goods and services are sold both by large global frms and small local frms. Surprisingly, the large frms charge, often substantially, higher prices. Examples include hotels, airlines, and coffee shops. This paper provides a parsimonious model that can account for these pricing patterns. In this model, consumers face costs when switching from one supplier...

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English / 01/08/2005

Decomposition of differences in distribution using quantile regression

Over the last twenty years, many researchers have attempted to explain the determinants of wage inequality. I propose a flexible, intuitive and semiparametric estimator of distribution functions in the presence of covariates. The conditional wage distribution is estimated by quantile regressions. Then, the conditional distribution is integrated over the range of the covariates to...

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English / 01/08/2005

Arbeitsrechtliche Regulierungen und ihr Einfluss auf Unternehmensgründungen

Der Beitrag beschäftigt sich mit der Frage, inwieweit arbeitsrechtliche Regulierungen und insbesondere deren Wahrnehmung einen Einfluß auf die Gründungsneigung und damit vermutlich auf die tatsächlichen Unternehmensgründungen ausübt. Dabei kann einerseits gezeigt werden, daß junge Unternehmen aufgrund vielfältiger Ausnahmeregelungen in ihren personalpolitischen Handlungsmöglichkeiten...

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Deutsch / 01/07/2005

Intimidating Competitors Endogenous Vertical Integration and Downstream Investment in Successive Oligopoly

We examine the interplay of endogenous vertical integration and costreducing downstream investment in successive oligopoly. We start from a linear Cournot model to motivate our more general reducedform framework. For this general framework, we establish the following main results: First, vertical integration increases own investment and decreases competitor investment (intimidation...

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English / 01/07/2005

Anticompetitive Practices and Liberalising Markets in Latin America and the Caribbean

The last ten years have seen many Latin American and Caribbean nations enact or reform competition laws, and numerous other jurisdictions are considering following suit. The evidential base to guide such policymaking is, however, limited. In this paper we have assembled two databases, one concerning allegations of anti-competitive acts in newspaper articles and another concerning the...

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English / 01/07/2005

Sustainable Fiscal Policy in a Federal System: Switzerland as an Example

How a sustainable fiscal policy can be performed in a federal system is not only a Swiss problem but is also discussed in other federal countries like Germany and Austria, and in the European Union. Contrary to most other countries, the Swiss Fiscal system is characterised by an extensive fiscal federalism with high fiscal autonomy at all govermental levels, by direct popular rights...

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English / 01/07/2005

Reforming health care: Evidence from quantile regressions for counts

I consider the problem of estimating the effect of a health care reform on the frequency of individual
doctor visits when the reform effect is potentially different in different parts of the outcome distribution.
Quantile regression is a powerful method for studying such heterogeneous treatment effects. Only
recently has this method been extended to situations where...

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English / 22/06/2005

Oxytocin increases trust in humans

Trust pervades human societies. Trust is indispensable in friendship, love, families and organizations, and plays a key role in economic exchange and politics. In the absence of trust among trading partners, market transactions break down. In the absence of trust in a country's institutions and leaders, political legitimacy breaks down. Much recent evidence indicates that trust...

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English / 02/06/2005

Discounting and altruism to future decision-makers

Is discounting of future decision-makers’ consumption utilities consistent with "pure" altruism toward those decision-makers, that is, a concern that they are better off according to their own, likewise forward-looking, preferences? It turns out that the answer is positive for many but not all discount functions used in the economics literature. In particular, "...

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English / 01/06/2005

The Hidden Costs of Control

In this paper we analyze the behavioral consequences of control on motivation. Wenstudy a simple experimental principal-agent game, where the principal decides whethernhe controls the agent by implementing a minimum performance requirement before the agent chooses a productive activity. Our main finding is that a principal's decisionnto control has a negative impact on the agent...

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English / 01/06/2005

Neuroeconomic Foundations of Trust and Social Preferences

This paper discusses recent neuroeconomic evidence related to other-regarding behaviors and the decision to trust in other people’s other-regarding behavior. This evidencensupports the view that people derive nonpecuniary utility (i) from mutual cooperation in socialndilemma (SD) games and (ii) from punishing unfair behavior. Thus, mutual cooperation and the punishment of free riders...

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English / 01/06/2005

The Neuroeconomics of Mind Reading and Empathy

"The most fundamental solution concepts in Game Theory – Nash equilibrium, backward induction, and iterated elimination of dominated strategies – are based on the assumption that people are capable of predicting others' actions. These concepts require people to be able to view the game from the other players’ perspectives, i.e. to understand others’ motives and beliefs....

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English / 01/06/2005

The Behavioral Effects of Minimum Wages

The prevailing labor market models assume that minimum wages do not affect the labor supply schedule. We challenge this view in this paper by showing experimentally that minimum wages have significant and lasting effects on subjects’ reservation wages. The temporary introduction of a minimum wage leads to a rise in subjects’ reservation wages which persists even after the minimum...

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English / 01/06/2005

Myopic Loss Aversion Revisited: The Effect of Probability Distortions in Choice Under Risk

When the performance of a risky asset is frequently assessed, the probability of detecting a loss is high, which averts the loss averse investors. This effect is known as myopic loss aversion (MLA). This paper reexamines several recent experimental studies documenting the existence of MLA. A closer look at the experimental data reveals that the effect of MLA is largely neutralized by...

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English / 01/06/2005

Dynamic Taylor Rules and the Predictability of Interest Rates

Recent research shows that when commonly estimated dynamic Taylor rules, which are augmented with a lagged interest, are embedded in a variety of macroeconomic models, they imply a greater amount of predictable information about future movements in interest rates than is actually evident in the yield curve. We extend the analysis to consider more generally the predictability of the...

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English / 01/06/2005

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