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Maros Servatka's
Scholarly Papers
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Total Downloads
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Citations
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1.
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Maros Servatka University of Canterbury - Department of Economics George Theocharides Sungkyunkwan University
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11 Dec 07
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19 Oct 08
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131 (63,756)
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Abstract:
This classroom experiment introduces students to the notion of credit risk and expected return, by allowing them to trade on comparable corporate bond issues from two types of markets - investment-grade and high-yield. Investment-grade issues have a lower probability of default than high-yield issues, and thus provide a lower yield. There are three ways in which participants can earn money - from coupon payments, the face value of the bond, and by capital gains. While participating in an experiment, students learn about the notion of risk and return, how credit risk affects bond prices, the movement of bond prices through time, as well as other general characteristics of the bond markets.
Teaching experiment, credit risk, bond market, risk and return
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2.
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Maros Servatka University of Canterbury - Department of Economics
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28 Mar 07
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05 Feb 08
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61 (108,025)
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Abstract:
This study explores the ways in which information about other individual's action affects one's own behavior in a dictator game. The experimental design discriminates behaviorally between three possible effects of recipient's within-game reputation on the dictator's decision: reputation causing indirect reciprocity, social influence, and identification. The separation of motives is an important step in trying to understand how impulses towards selfish or generous behavior arise. The statistical analysis of experimental data reveals that the reputation effects have a stronger impact on dictators' actions than the social influence and identification.
experimental economics, dictator game, indirect reciprocity, reputation, social influence, identification
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3.
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Peter Duersch University of Heidelberg - Faculty of Economics and Social Studies Maros Servatka University of Canterbury - Department of Economics
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01 Sep 07
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29 Sep 09
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49 (119,954)
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This paper experimentally investigates whether risk-averse individuals punish less if the outcome of punishment is uncertain than when it is certain. Our design includes three treatments: Baseline in which the one-shot prisoner’s dilemma game is played; Certain Punishment in which the prisoner’s dilemma game is followed by a punishment stage allowing subjects to decrease the other player’s payoff by 2 Euros; and Uncertain Punishment in which subjects could decrease the other player’s payoff with a 50% probability by 1 Euro and with a 50% probability by 3 Euros. We find that in all cases the risk-averse subjects are equally likely to cooperate in the prisoner’s dilemma and equally likely to punish in the second stage in either of the two punishment treatments.
Experiment, prisoner’s dilemma, punishment, risk aversion, uncertainty
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4.
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Maros Servatka University of Canterbury - Department of Economics
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09 Oct 07
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13 Mar 08
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35 (136,681)
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Abstract:
This paper explores how information about paired subject's previous action affects one's own behavior in a dictator game. The first experiment puts dictators in two environments where they can either give money to the paired player or take money away from them: one where the recipient is a stranger and the other where the dictator has information on the recipient's reputation. Contrary to anecdotal evidence, the statistical tests show that the dictator's behavior toward a stranger is not statistically significantly different from their behavior toward an individual with an established reputation. The findings arise because a high proportion of dictators acted purely in their own self interest in both treatments. In the second experiment the dictators' choices were restricted to only generous actions. In such environment the dictators sent more money on average to recipients with a reputation for being generous than to recipients without a reputation.
Experimental economics, dictator game, indirect reciprocity, reputation, generosity
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5.
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Maros Servatka University of Canterbury - Department of Economics Steven Tucker University of Canterbury - Department of Economics Radovan Vadovic Instituto Tecnológico Autónomo de México (ITAM)
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14 May 08
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28 Oct 08
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34 (139,494)
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Abstract:
While most of the previous literature interprets trust as an action, we adopt a view that trust is represented by a belief that the other party will return a fair share. The agent's action is then a commitment device that signals this belief. In this paper we propose and test a conjecture that economic agents use trust strategically. That is, the agents have incentives to inflate the perceived level of trust (the signal) in order to induce a more favorable outcome for themselves. In the experiment we study the behavior of subjects in a modified investment game which is played sequentially and simultaneously. While the sequential treatment allows for strategic use of trust, in the simultaneous treatment the first mover's action is not observed and hence does not signal her belief. In line with our prediction we find that first movers send significantly more in the sequential treatment than in simultaneous. Moreover, second movers reward trusting action, but only if it is maximal. We also find that signaling with trust enhances welfare.
Experimental economics, Trust, Beliefs
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6.
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Maros Servatka University of Canterbury - Department of Economics Radovan Vadovic Instituto Tecnológico Autónomo de México (ITAM)
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14 Apr 08
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19 Oct 09
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29 (145,664)
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Abstract:
Experimental evidence suggests the size of the foregone outside option of the first mover does not affect the behavior of the second mover in the lost wallet game. In this paper we experimentally compare the behavior of subjects when they face an outside option with unequal payoffs, i.e., the first mover gets 10 and the second mover gets 0, and when they face an outside option with equal payoffs, i.e., both get 5. Consistent with the most of the literature we do not find a significant difference in behavior of second movers.
Experimental economics, fairness, inequality, lost wallet game, outside option
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7.
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Maros Servatka University of Canterbury - Department of Economics Steven Tucker University of Canterbury - Department of Economics Radovan Vadovic Instituto Tecnológico Autónomo de México (ITAM)
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30 Oct 08
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30 Oct 08
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25 (153,767)
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Abstract:
This paper reports on an experiment studying the effectiveness of two types of mechanisms for promoting trust: pecuniary and non-pecuniary as well as their mutual interaction. Our data provide evidence that both mechanisms significantly enhance trust in comparison to the standard investment game. However, we find that the pecuniary mechanism performs significantly worse than the non-pecuniary one. Our results also point to the fact that pecuniary mechanism, which depends on monetary incentives, can be counterproductive when combined with mechanism which relies primarily on psychological incentives.
Communication; deposit; experimental economics trust, trustworthiness
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8.
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James C. Cox Georgia State University - Department of Economics Maros Servatka University of Canterbury - Department of Economics Radovan Vadovic Instituto Tecnológico Autónomo de México (ITAM)
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13 Jan 09
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13 Jan 09
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17 (175,776)
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Abstract:
This paper reports an experiment designed to shed light on an empirical puzzle observed by Dufwenberg and Gneezy (2000) that the size of the foregone outside option by the first mover does not affect the behavior of the second mover in a lost wallet game. Our conjecture was that the original protocol may not have made the size of the forgone outside option salient to second movers. Therefore, we change two features of the Dufwenberg and Gneezy protocol: (i) instead of the strategy method we implement a direct response method (sequential play) for the decision of the second mover; and (ii) we use paper money certificates that are passed between the subjects rather than having subjects write down numbers representing their decisions. We observe that our procedure yields qualitatively the same result as the Dufwenberg and Gneezy experiment, i.e., the second movers do not respond to the change in the outside option of the first movers.
Experimental economics, lost wallet game, outside option
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9.
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Maros Servatka University of Canterbury - Department of Economics Steven Tucker University of Canterbury - Department of Economics Radovan Vadovic Instituto Tecnológico Autónomo de México (ITAM)
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| Posted: |
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17 Jun 09
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17 Jun 09
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11 (193,140)
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Abstract:
This paper reports an experiment evaluating the effect of gift giving on building trust in a relationship. We have nested our explorations in the standard version of the investment game. Our gift treatment includes a dictator stage in which the trustee decides whether to give a gift to the trustor before both of them proceed to play the investment game. We observe that in such case the majority of trustees offer their endowment to trustors. Consequently, receiving a gift significantly increases the amounts sent by trustors when controlling for the differences in payoffs created by it. Trustees are, however, not better off by giving a gift as the increase in the amount sent by trustors is not large enough to offset the trustees’ loss associated with the cost of giving a gift. Our results indicate that a relationship which is initiated by gift giving leads to higher trust and efficiency but at the same time is probably not stable.
Experimental economics, gift giving, investment game, trust, trustworthiness
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10.
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Ninghua Du Shanghai University of Finance and Economics Maros Servatka University of Canterbury - Department of Economics
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27 Apr 09
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08 Nov 09
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8 (201,147)
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In this paper we experimentally study effects of exogenous revenue shocks on long-term relationships between firms and workers. While we find that shocks have no significant effect on wages and a little effect on the duration of relationships, we observe their significant effect on effort levels: given the same wage, the workers exert lower effort in the condition with shocks than in the condition with no shocks. As a result, the presence of shocks in our experiment decreases market efficiency.
Experiment, exogenous revenue shocks, gift exchange
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11.
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Charles Bram Cadsby University of Guelph Maros Servatka University of Canterbury - Department of Economics Fei Song Ted Rogers School of Management, Ryerson University
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22 Oct 09
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Last Revised:
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31 Oct 09
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7 (203,520)
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Abstract:
Employing a two-by-two factorial design that manipulates whether dictator groups are single or mixed-sex and whether procedures are single or double-blind, we examine gender effects in a standard dictator game. No gender effect was found in any of the experimental treatments. Moreover, neither single - versus mixed - sex groups nor level of anonymity had any impact on either male or female behavior.
dictator game, gender, anonymity
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12.
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Narine Badasyan Virginia Polytechnic Institute & State University - Department of Economics Jacob K. Goeree California Institute of Technology - Division of the Humanities and Social Sciences Monica E. Hartmann University of St. Thomas - Department of Economics Charles A. Holt University of Virginia - Department of Economics John Morgan University of California, Berkeley - Economic Analysis & Policy Group Tanya Rosenblat Wesleyan University - Department of Economics Maros Servatka University of Canterbury - Department of Economics Dirk Yandell University of San Diego - School of Business Administration
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03 Mar 09
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Last Revised:
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03 Mar 09
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0 (0)
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Abstract:
This classroom experiment introduces students to the concept of double marginalization, i.e., the exercise of market power at successive vertical layers in a supply chain. By taking on roles of firms, students determine how the mark-ups are set at each successive production stage. They learn that final retail prices tend to be higher than if the firms were vertically integrated. Students compare the welfare implications of two potential solutions to the double marginalization problem: acquisition and franchise fees. The experiment also can stimulate a discussion of two-part tariffs, transfer pricing, contracting, and the Coase theorem.
double marginalization, monopoly, franchising, contracting, vertical integration, classroom experiments
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13.
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Maros Servatka University of Canterbury - Department of Economics
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08 May 07
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Last Revised:
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08 May 07
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0 (0)
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Abstract:
The three dissertation essays investigate different aspects of reputation in games where fairness is an important consideration. The first essay studies the effects of reputation on indirect reciprocity in different dictator games. The first experiment places dictators in two environments where they can either give money to the paired player or take money away from them: in one treatment the paired player is a stranger and in the other treatment the dictator has information on the paired player's reputation. Contrary to anecdotal evidence, the statistical tests show that the dictators' behavior towards a stranger is not statistically significantly different from their behavior towards an individual with an established reputation. The findings arise because a high proportion of dictators acted purely in their own self interest in both treatments. The data also provides evidence that dictators are more generous when they know that their choices (but not their identities) will be revealed in the future. In the second experiment the dictators' choices were restricted to only generous actions. In such environment the dictators sent more money on average to recipients with a reputation for being generous than to recipients without a reputation. The second essay explores the ways in which information about others' actions affects one's own behavior in a dictator game. The experimental design discriminates behaviorally between three possible effects of recipient's within-game reputation on the dictator's decision: reputation causing indirect reciprocity, social influence, and identification. The separation of motives helps to identify the mechanisms of social transmission of impulses towards selfish or generous behavior. The data analysis reveals that the reputation effects have a stronger impact on dictators' actions than social influence and identification. In the third essay we examine the reputation effects in a labor market setting by analyzing the influence of negative technological shocks on long run relationships between firms and workers. The positive correlation between wage and effort in static conditions has been demonstrated in many experimental studies and has been one of the prominent explanations for the existence of wage rigidity. We subject these findings to further tests in a non-stationary environment that better corresponds to outside-the-lab market conditions. We observe the positive correlation of wages and effort but do not find support for downward wage rigidity in our data. Once the shocks occur, firms lower the wages and relationships often break down. The workers who accept a lower wage respond with exerting a lower effort.
experiments, fairness, reputation, dictator game
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