Gregory S. Crawford, Robin S Lee, Michael D Whinston, Ali Yurukoglu, The welfare effects of vertical integration in multichannel television markets, In: NBER Working papers, No. 21832, 2015. (Working Paper)
 
We investigate the welfare effects of vertical integration of regional sports networks (RSNs) with programming distributors in U.S. multichannel television markets. Vertical integration can enhance efficiency by reducing double marginalization and increasing carriage of channels, but can also harm welfare due to foreclosure and raising rivals' costs incentives. We estimate a structural model of viewership, subscription, distributor pricing, and affiliate fee bargaining using a rich dataset on the U.S. cable and satellite television industry (2000-2010). We use these estimates to analyze the impact of simulated vertical mergers and de-mergers of RSNs on competition and welfare, and examine the efficacy of regulatory policies introduced by the U.S. Federal Communications Commission to address competition concerns in this industry. |
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Björn Bartling, Tobias Gesche, Nick Netzer, Does the absence of human sellers bias bidding behavior in auction experiments?, In: Working paper series / Department of Economics, No. 225, 2016. (Working Paper)
 
This paper studies the impact of the presence of human subjects in the role of a seller on bidding in experimental second-price auctions. Overbidding is a robust finding in second- price auctions, and spite among bidders has been advanced as an explanation. If spite extends to the seller, then the absence of human sellers who receive the auction revenue may bias upwards the bidding behavior in existing experimental auctions. We derive the equilibrium bidding function in a model where bidders have preferences regarding both, the payoffs of other bidders and the seller’s revenue. Overbidding is optimal when buyers are spiteful only towards other buyers. However, optimal bids are lower and potentially even truthful when spite extends to the seller. We experimentally test the model predictions by exogenously varying the presence of human subjects in the roles of the seller and competing bidders. We do not detect a systematic effect of the presence of a human seller on overbidding. We conclude that overbidding is not an artefact of the standard experimental implementation of second-price auctions in which human sellers are absent. |
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Alain Cohn, Michel Maréchal, Priming in economics, In: Working paper series / Department of Economics, No. 226, 2016. (Working Paper)
 
Conceptual priming has become an increasingly popular tool in economics. Here, we review the literature that uses priming in incentivized experiments to study economic questions. We mainly focus on the role of social identity, culture, and norms in shaping preferences and behavior. We also discuss recently raised objections to priming research and conclude with promising avenues for future research. |
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Michel Maréchal, Christian Thöni, Hidden persuaders: do small gifts lubricate business negotiations?, In: Working paper series / Department of Economics, No. 227, 2018. (Working Paper)
 
Gift-giving customs are ubiquitous in social, political, and business life. Legal regulation and industry guidelines for gifts are often based on the assumption that large gifts potentially influence behavior and create conflicts of interest, but small gifts do not. However, scientific evidence on the impact of small gifts on business relationships is scarce. We conducted a natural field experiment in collaboration with sales agents of a multinational consumer products company to study the influence of small gifts on the outcome of business negotiations. We find that small gifts matter. On average, sales representatives generate more than twice as much revenue when they distribute a small gift at the onset of their negotiations. However, we also find that small gifts tend to be counterproductive when purchasing and sales agents meet for the first time, suggesting that the nature of the business relationship crucially affects the profitability of gifts. |
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Joseph P Romano, Michael Wolf, Multiple testing of one-sided hypotheses: combining Bonferroni and the bootstrap, In: Working paper series / Department of Economics, No. 254, 2017. (Working Paper)
 
In many multiple testing problems, the individual null hypotheses (i) concern univariate parameters and (ii) are one-sided. In such problems, power gains can be obtained for bootstrap multiple testing procedures in scenarios where some of the parameters are 'deep in the null' by making certain adjustments to the null distribution under which to resample. In this paper, we compare a Bonferroni adjustment that is based on finite-sample considerations with certain 'asymptotic' adjustments previously suggested in the literature. |
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Tobias Gesche, De-biasing strategic communication, In: Working paper series / Department of Economics, No. 216, 2021. (Working Paper)
 
This paper studies the effect of disclosing conflicts of interest on strategic communication when the sender has lying costs. I present a simple economic mechanism under which such disclosure often leads to more informative and, at the same time, also to more biased messages. This benefits rational receivers but exerts a negative externality from them on naive or delegating receivers. Disclosure is thus not a Pareto-improvement among receivers. I identify general conditions of the information structure under which this effect manifests and show that whenever it does, full disclosure is socially inefficient. These results hold independently of the degree of the receivers’ risk-aversion and for an arbitrary precision of the disclosure statement. |
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Javier Cravino, Andrei A Levchenko, The distributional consequences of large devaluations, In: UBS Center Working Paper Series, No. 15, 2016. (Working Paper)
 
We study the differential impact of large exchange rate devaluations on the cost of living at different points on the income distribution. Across product categories, the poor have relatively high expenditure shares in tradeable products. Within tradeable product categories, the poor consume lower-priced varieties. Changes in the relative price of tradeables and the relative prices of lower-priced varieties following a devaluation will affect the cost of the consumption basket of the low-income households relative that of the high-income households. We quantify these effects following the 1994 Mexican peso devaluation and show that their distributional consequences can be large. In the two years that follow the devaluation, the cost of the consumption basket of those in the bottom decile of the income distribution rose between 1.46 and 1.6 times more than the cost of the consumption basket for the top income decile. |
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Konstantin Beck, Lukas Kauer, Beschreibung der Berechnung einer Einheitsprämie gemäss der Initiative für eine öffentliche Krankenkasse, In: Schriften des CSS-Instituts für empirische Gesundheitsökonomie, No. 2014, 2014. (Working Paper)
 
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Konstantin Beck, Empirische Fakten zur Fiktion kantonaler Reserven in der Sozialen Krankenversicherung, In: Schriften des CSS-Instituts für empirische Gesundheitsökonomie, No. 969/2013, 2013. (Working Paper)
 
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Viktor von Wyl, Konstantin Beck, Sind junge Risiken auch gute Risiken? - Eine kritische Betrachtung der Stellung der Jugendlichen in der obligatorischen Grundversicherung, In: Schriften des CSS Instituts für empirische Gesundheitsökonomie, No. 2012, 2012. (Working Paper)
 
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Konstantin Beck, Les réserves transférables sont-elles une alternative au calcul des réserves par canton? - Avantages et inconvénients de réserves transférables dans l'assurance obligatoire des soins, In: Contribution du CSS Institut de recherche empirique en économie de la santé, No. 2009, 2009. (Working Paper)
 
Le document met la discussion des réserves transférables en relation avec l'exigence politique que les réserves légales minimales soient fixées par canton. A ce propos, il montre l'évolution de la régulation des réserves des 13 dernières années et met en évidence l'augmentation du risque qui y est lié et que l'OFSP a pris en compte de manière quelque peu négligente. Ce document prouve aussi pourquoi l'exigence de réserves cantonales est en contradiction la plus fondamentale avec l'actuariat, base des affaires d'assurance. La discussion des avantages et des inconvénients des réserves transférables fait ressortir que celles-ci posent également de nombreuses questions et troubleraient encore davantage le marché déjà fortement ébranlé. Mais afin de satisfaire tout de même au mandat du conseil d'administration, un modèle de transférabilité interne à la caisse est développé à l'alinéa 4.2.6. et une autre idée est esquissée à l'alinéa 5. Tous deux pourraient contribuer à désamorcer la discussion en matière de réserves
cantonales. |
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Konstantin Beck, Sind portable Reserven eine Alternative zur Reservekalkulation pro Kanton? - Vor- und Nachteile portabler Reserven in der Krankenpflege Grundversicherung, In: Schriften des CSS-Instituts für empirische Gesundheitsökonomie, No. 2009, 2009. (Working Paper)
 
Das Papier stellt die Diskussion portabler Reserven in Zusammenhang mit der politischen Forderung nach kantonaler Festlegung gesetzlicher Mindestreserven. Dabei zeigt es die Entwicklung der Reserveregulierung der letzten 13 Jahre und zeigt die damit verbundene Risikozunahme , welche das BAG einigermassen fahrlässig in Kauf genommen hat. Es weist auch nach, warum die Forderung nach kantonalen Reserven in grundsätzlichstem Widerspruch zur Versicherungsmathematik, der Basis des Versicherungsgeschäftes, steht. Bei der Diskussion der Vor- und Nachteile portabler Reserven zeigt sich, dass diese ebenfalls mit zahlreichen Fragen behaftet sind und noch mehr Unruhe in den bereits sehr stark erschütterten Markt bringen würden. Um aber dem Auftrag des Verwaltungsrats doch noch gerecht zu werden, wird in Abschnitt 4.2.6. ein Modell der kasseninternen Portabilität entwickelt und in Abschnitt 5. eine weitere Idee skizziert. Beides könnte dazu beitragen, die kantonale Reservediskussion zu entschärfen. |
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Konstantin Beck, Keine Solidsarität ohne Risikoausgleich : "gleiche Prämien für alle" bedingt effizienten Risikoausgleich, In: Publikationen des European Risk Adjustment Network, 2006. (Working Paper)
 
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Konstantin Beck, Reformstau beim Risikoausgleich? : internationale Erfahrungen und konkrete Lösungen für die Schweiz, In: Publikationen des European Risk Adjustment Network, 2004. (Working Paper)
 
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Paula Bustos, Bruno Caprettini, Jacopo Ponticelli, Agricultural productivity and structural transformation : evidence from Brazil, In: Fama-Miller Working Paper, Chicago Booth Research Papers, No. 14-07, 2015. (Working Paper)
 
We study the effects of the adoption of new agricultural technologies on structural transformation. To guide empirical work, we present a simple model where the effect of agricultural productivity on industrial development depends on the factor bias of technical change. We test the predictions of the model by studying the introduction of genetically engineered soybean seeds in Brazil, which had heterogeneous effects on agricultural productivity across areas with different soil and weather characteristics. We find that technical change in soy production was strongly labor saving and led to industrial growth, as predicted by the model. |
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Erik Schokkaert, Konstantin Beck, Amir Shmueli, Wynand P M M van de Ven, Carine Van de Voorde, Juergen Wasem, Acceptable costs and risk adjustment : policy choices and ethical trade-offs, In: Discussions Paper Series (DPS) / Center for Economic Studies, KU Leuven, No. 06.19, 2006. (Working Paper)
 
The main objective of risk adjustment in systems of regulated competition on healthinsurance markets is the removal of incentives for undesirable risk selection. We introduce a simple conceptual framework to clarify how the definition of "acceptable costs" and the distinction between legitimate and illegitimate risk adjusters imply diffcult ethical trade-offs between equity, avoidance of undesirable risk selection and cost-effectiveness. Focusing on the situation in Belgium, Germany, Israel, the Netherlands and Switzerland, we show how differences in the importance attached to solidarity and in the beliefs about market effciency, have led to different decisions with respect to the definition of the basic benefits package, the choice of risk-adjusters, the possibilities of managed care, the degree of consumer choice and the relative importance of income-related financing sources in the overall system. |
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Jean-Michel Benkert, Igor Letina, Designing dynamic research contests, In: Working paper series / Department of Economics, No. 235, 2019. (Working Paper)
 
This paper studies the optimal design of dynamic research contests. We introduce interim transfers, which are paid in every period while the contest is ongoing, to an otherwise standard setting. We show that a contest where: (i) the principal can stop the contest in any period, (ii) a constant interim transfer is paid to agents in each period while the contest is ongoing, and (iii) a final prize is paid once the principal stops the contest, is optimal for the principal and implements the first-best. |
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Joel Floris, Kaspar Staub, Ulrich Woitek, The Benefits of Intervention: Birth Weights in Basle 1912-1920, In: Working paper series / Department of Economics, No. 236, 2016. (Working Paper)
 
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Friederike Mengel, Jan Sauermann, Ulf Zölitz, Gender bias in teaching evaluations, In: IZA Discussion Papers, No. 11000, 2017. (Working Paper)
 
This paper provides new evidence on gender bias in teaching evaluations. We exploit a quasi-experimental dataset of 19,952 student evaluations of university faculty in a context where students are randomly allocated to female or male instructors. Despite the fact that neither students' grades nor self-study hours are affected by the instructor's gender, we find that women receive systematically lower teaching evaluations than their male colleagues. This bias is driven by male students' evaluations, is larger for mathematical courses and particularly pronounced for junior women. The gender bias in teaching evaluations we document may have direct as well as indirect effects on the career progression of women by affecting junior women's confidence and through the reallocation of instructor resources away from research and towards teaching. |
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Andreas Hefti, Distributional comparative statics with heterogeneous agents, In: Working paper series / Department of Economics, No. 237, 2016. (Working Paper)
 
We propose a formal way to systematically study the differential effects of exogenous shocks in economic models with heterogeneous agents. Our setting applies to models that can be rephrased as "competition for market shares" in a broad sense. We show that even in presence of any number of arbitrarily heterogeneous agents, a single recursion relation characterizes the distributional pattern of equilibrium market shares and related measures. We identify the general conditions under which the market share function rotates, thereby either causing more or less equality among the agents. Our setting highlights the exceptional rule that power functions play for the distributional effects. We apply our method across economic models, including examples from monopolistic competition, discrete choice, partial and general equilibrium theory and contest theory. |
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