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Government distortion in independently owned media: evidence from U.S. Cold War news coverage of human rights

This study provides evidence of government distortion of news coverage among independently owned media outlets in a democratic regime. It uses data from 1946 to 2010 and documents that U.S. news coverage of human rights abuses committed by foreign governments was associated with membership on the United Nations Security Council and the degree of political alliance with the United…

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English / 01/04/2017

Altered reward anticipation: Potential explanation for weight gain in schizophrenia?

Obesity and weight gain are severe complications of mental illness, especially schizophrenia. They result from changes in lifestyle and nutrition, side effects of medication and other, less well-understood factors. Recent studies suggest that obesity and weight gain are linked to psychopathology. Specifically, severe psychopathology is associated with greater weight dysregulation,…

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English / 01/04/2017

"Mafia Inc.": when godfathers become entrepreneurs

We study the investment of criminal organizations in the legal economy. We focus on Italy, a country historically plagued by a conspicuous presence of mafia-type organizations. By using the exogenous credit contraction imposed by the 2007 financial crisis we highlight how the consequences for newly established enterprises have been less severe in areas with organized crime. Although…

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English / 01/04/2017

A Tale of Two Tails: On the Coexistence of Overweighting and Underweighting of Rare Extreme Events

Almost all important decisions in people’s lives entail risky consequences. Some of these decisions involve events that materialize with a low probability but lead to extreme consequences such as loss of total wealth or accidental death. When facing such rare extreme events, people display considerable risk aversion in some situations whereas in others the opposite is the case. For…

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/ 01/04/2017

The Impact of Culture on Loss Aversion

Based on the literature on the relationship between culture, emotion, and loss aversion, we derive that culture can influence the degree of loss aversion. To test our hypotheses, we conduct a standardized survey in 53 countries worldwide that includes the questions from the Hofstede survey on cultural dimensions as well as lottery questions on loss aversion. The results show that…

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English / 01/04/2017

Estimating cumulative prospect theory parameters from an international survey

We conduct a standardized survey on risk preferences in 53 countries worldwide and estimate cumulative prospect theory parameters from the data. The parameter estimates show that significant differences on the cross-country level are to some extent robust and related to economic and cultural differences. In particular, a closer look on probability weighting underlines gender…

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English / 01/04/2017

Pricing and Disentanglement of American Puts in the Hyper-Exponential Jump-Diffusion Model

We analyze American put options in a hyper-exponential jump-diffusion model. Our contribution is threefold. Firstly, by following a maturity randomization approach, we solve the partial integro-differential equation and obtain a tight lower bound for the American option price. Secondly, our method allows us to disentangle the contributions of jump and diffusion for the American early…

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English / 01/04/2017

Industrie ist mehr als nur Fabriken

Die Aufmerksamkeit, die vor allem amerikanische Politiker auf den Industriesektor richten, hat Gründe: Wenn Betriebe
dichtmachen, können Regionen sozial zerfallen. Einfache Lösungen gibt es nicht.

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Deutsch / 01/04/2017

A Tale of Two Tails: On the Coexistence of Overweighting and Underweighting of Rare Extreme Events

Almost all important decisions in people’s lives entail risky consequences. Some of these decisions involve events that materialize with a low probability but lead to extreme consequences such as loss of total wealth or accidental death. When facing such rare extreme events, people display considerable risk aversion in some situations whereas in others the opposite is the case. For…

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/ 01/04/2017

A survival analysis of islamic and conventional banks

Are Islamic banks inherently more stable than conventional banks? We address this question by applying a survival analysis based on the Cox proportional hazard model to a comprehensive sample of 421 banks in 20 Middle and Far Eastern countries from 1995 to 2010. By comparing the failure risk for both bank types, we find that Islamic banks have a significantly lower risk of failure…

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English / 01/04/2017

The neural circuitry of emotion-induced distortions of trust

Aversive emotions are likely to be a key source of irrational human decision-making but still little is known about the underlying neural circuitry. Here, we show that aversive emotions distort trust decisions and cause significant changes in the associated neural circuitry. They reduce trust and suppress trust-specific activity in left temporoparietal junction (TPJ). In addition,…

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English / 01/04/2017

Understanding peer effects: on the nature, estimation, and channels of peer effects

This paper estimates peer effects in a university context where students are randomly assigned to sections. While students benefit from better peers on average, low-achieving students are harmed by high-achieving peers. Analyzing students’ course evaluations suggests that peer effects are driven by improved group interaction rather than adjustments in teachers’ behavior or students’…

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English / 01/04/2017

Adaptive value normalization in the prefrontal cortex is reduced by memory load

Adaptation facilitates neural representation of a wide range of diverse inputs, including reward values. Adaptive value coding typically relies on contextual information either obtained from the environment or retrieved from and maintained in memory. However, it is unknown whether having to retrieve and maintain context information modulates the brain’s capacity for value adaptation…

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English / 01/04/2017

Sind Workaholics unzufriedener?

Einkommensungleichheiten führen zu einer ungleichen Verteilung der meisten auf dem Markt käuflichen Güter. Es ist allerdings unklar, wie sich das Einkommen auf den Konsum von sozialen Gütern wie Freundetreffen oder Vereinsaktivitäten auswirkt. Marktgüter und Sozialgüter unterscheiden sich konzeptuell, indem der Konsum Ersterer vor allem Geld, der Konsum Letzterer hingegen vor allem…

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Deutsch / 01/04/2017

Competition in agricultural markets: an experimental approach

This paper develops an experimental approach to measure competition among intermediaries in agricultural markets, based on the random allocation of subsidies to traders. We show that, in individual-level randomizations with competitive spillovers, treatment-control differences in prices can inform an intuitive test of the degree of differentiation among firms. In the context of the…

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English / 01/04/2017

Ultrasensitivity and sharp threshold theorems for multisite systems

This work studies the ultrasensitivity of multisite binding processes where ligand molecules can bind to several binding sites. It considers more particularly recent models involving complex chemical reactions in allosteric phosphorylation processes and for transcription factors and nucleosomes competing for binding on DNA. New statistics-based…

Institution partenaire

Haute Ecole de Gestion de Genève

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English / 31/03/2017

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