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From Boston to Chinese parallel to deferred acceptance: theory and experiments on a family of school choice mechanisms

01 Jan 2013-pp 71
TL;DR: The authors characterize a parametric family of application-rejection school choice mechanisms, including the Boston and deferred acceptance mechanisms as special cases, and spanning the parallel mechanisms for Chinese college admissions, the largest centralized matching in the world.
Abstract: We characterize a parametric family of application-rejection school choice mechanisms, including the Boston and Deferred Acceptance mechanisms as special cases, and spanning the parallel mechanisms for Chinese college admissions, the largest centralized matching in the world. Moving from one extreme member to the other results in systematic changes in manipulability, stability and welfare properties. Neither the ex-post dominance of the DA over the Boston equilibria, nor the ex-ante dominance of the Boston equilibria over the DA in stylized settings extends to the parallel mechanisms. In the laboratory, participants are most likely to reveal their preferences truthfully under the DA mechanism, followed by the Chinese parallel and then the Boston mechanisms. Furthermore, while the DA is significantly more stable than the Chinese parallel mechanism, which is more stable than Boston, efficiency comparisons vary across environments.

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Citations
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Journal ArticleDOI
TL;DR: This article showed that radio had a significant negative effect on the Nazi electoral support between 1929 and 1932, when political news were slanted against the Nazi party and the effect was reversed in just 5 weeks following Hitler's appointment as chancellor and the transfer of control of the radio to the Nazis.
Abstract: How far can the media protect or undermine democratic institutions in unconsolidated democracies, and how persuasive can they be in ensuring public support for dictator's policies? We study this question in the context of Germany between 1929 and 1939. Using geographical and temporal variation in radio availability, we show that radio had a significant negative effect on the Nazi electoral support between 1929 and 1932, when political news were slanted against Nazi party. This effect was reversed in just 5 weeks following Hitler's appointment as chancellor and the transfer of control of the radio to the Nazis. Pro-Nazi radio propaganda caused higher vote for the Nazis in March 1933 election. After full consolidation of power, radio propaganda helped the Nazis to enroll new party members and encouraged denunciations of Jews and other open expressions of anti-Semitism. The effect of Nazi propaganda was not uniform. Depending on listeners' priors about the message, propaganda could be very effective or could backfire. Nazi radio was most effective in places where anti-Semitism was historically high and had a negative effect on the support for anti-Semitic policies in places with historically low anti-Semitism.

326 citations

ReportDOI
TL;DR: This paper studied the long-run earnings effects of college admission and found that returns are heterogeneous, with large, positive returns to highly selective degrees and degrees in health, science, and social science fields.
Abstract: Understanding how returns to higher education vary across degree programs is critical for effective higher education policy Yet there is little evidence as to whether all degrees improve labor market outcomes, and whether they do so for students from different types of backgrounds We combine administrative and archival data from Chile with score-based admissions rules at more than 1,100 degree programs to study how the long-run earnings effects of college admission depend on selectivity, field of study, and student characteristics Our data link admissions outcomes for 30 cohorts of college applicants to administrative records of labor market outcomes up to 30 years post-application We estimate regression discontinuity specifications for each degree, and describe how threshold-crossing effects vary by degree type In addition, we use variation in admissions outcomes driven by threshold-crossing to estimate a simple model that maps our discontinuity estimates into causal effects of admission by degree Observed choice and survey data indicate that the assumptions underlying this model are consistent with student behavior We find that returns are heterogeneous, with large, positive returns to highly selective degrees and degrees in health, science, and social science fields Returns to selectivity do not vary by student socioeconomic status Our findings suggest a role for policies that guide students toward higher-return degrees, such as targeted loans and better college preparation for students from low-income backgrounds

207 citations

Journal ArticleDOI
TL;DR: This article developed empirical methods for studying random utility models in a new and large class of school choice mechanisms and found that preferences are non-parametrically identified under either sufficient variation in choice environments or a preference shifter.
Abstract: Several school districts use assignment systems that give students an incentive to misrepresent their preferences. We find evidence consistent with strategic behavior in Cambridge. Such strategizing can complicate preference analysis. This paper develops empirical methods for studying random utility models in a new and large class of school choice mechanisms. We show that preferences are non-parametrically identified under either sufficient variation in choice environments or a preference shifter. We then develop a tractable estimation procedure and apply it to Cambridge. Estimates suggest that while 82% of students are assigned to their stated first choice, only 72% are assigned to their true first choice because students avoid ranking competitive schools. Assuming that students behave optimally, the Immediate Acceptance mechanism is preferred by the average student to the Deferred Acceptance mechanism by an equivalent of 0.08 miles. The estimated difference is smaller if beliefs are biased, and reversed if students report truthfully.

121 citations

Journal ArticleDOI
TL;DR: This paper used a novel experimental design to identify the strategies used by subjects in an infinitely repeated prisoners' dilemma experiment and found that the strategy elicitation has negligible effects on behavior supporting the validity of this method.
Abstract: We use a novel experimental design to identify the strategies used by subjects in an infinitely repeated prisoners’ dilemma experiment. We ask subjects to design strategies that will play in their place. We find that the strategy elicitation has negligible effects on behavior supporting the validity of this method. We study the strategies chosen by the subjects and find that they include some commonly mentioned strategies, such as tit-for-tat and Grim trigger. However, other strategies which are thought to have some desirable properties, such as win-stay-lose-shift are not prevalent. The results indicate that what strategy is used to support cooperation changes with the parameters of the game. Finally, our results confirm that long run miss-coordination can arise.

92 citations

Journal ArticleDOI
TL;DR: This study presents direct field evidence of preference misrepresentation by applicant's under the applicant-proposing DA in Israel for graduate studies in psychology, where several participating institutions offer positions in the same study track, but under different terms.
Abstract: We present direct field evidence of preference misrepresentation under deferred acceptance. The high-stakes admission process to graduate studies in psychology in Israel was centralized using the applicant-proposing version of deferred acceptance. Yet, a large fraction of these highly educated individuals, who had been informed about the strategy-proof nature of the mechanism in numerous ways, failed to play truthfully. Out of 704 rank-ordered lists that included a non-funded position in a program that offered funded positions, we found that in 137 (over 19%) the non-funded position was ranked higher (or the funded position was not ranked at all). This is despite the fact that the applicants had been informed that rank-ordered lists are never made public, funding is considered a positive signal of ability, and funding comes with no strings attached. Preference misrepresentation is associated with weaker applicants. We provide evidence from a laboratory experiment of a strong, causal, negative relationship between applicants’ expected desirability and preference misrepresentation.

88 citations

References
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Journal ArticleDOI
TL;DR: Z-Tree as mentioned in this paper is a toolbox for ready-made economic experiments, which allows programming almost any kind of experiments in a short time and is stable and easy to use.
Abstract: z-Tree (Zurich Toolbox for Ready-made Economic Experiments) is a software for developing and conducting economic experiments. The software is stable and allows programming almost any kind of experiments in a short time. In this article, I present the guiding principles behind the software design, its features, and its limitations.

9,760 citations

Journal ArticleDOI
TL;DR: In this article, the authors studied the relationship between college admission and the stability of marriage in the United States, and found that college admission is correlated with the number of stable marriages.
Abstract: (2013). College Admissions and the Stability of Marriage. The American Mathematical Monthly: Vol. 120, No. 5, pp. 386-391.

5,655 citations

Journal ArticleDOI
TL;DR: In this article, the authors formulate the school choice problem as a mechanism design problem and analyze some of the existing school choice plans including those in Boston, Columbus, Minneapolis, and Seattle, and offer two alternative mechanisms each of which may provide a practical solution to some critical school choice issues.
Abstract: A central issue in school choice is the design of a student assignment mechanism. Education literature provides guidance for the design of such mechanisms but does not offer specific mechanisms. The flaws in the existing school choice plans result in appeals by unsatisfied parents. We formulate the school choice problem as a mechanism design problem and analyze some of the existing school choice plans including those in Boston, Columbus, Minneapolis, and Seattle. We show that these existing plans have serious shortcomings, and offer two alternative mechanisms each of which may provide a practical solution to some critical school choice issues.

1,446 citations


Additional excerpts

  • ...Shortly after Abdulkadiroğlu and Sönmez (2003) was published, New York City public schools decided to replace its allocation mechanism with a capped version of the studentproposing deferred acceptance (DA) mechanism (Gale and Shapley 1962, Abdulkadiroğlu, Pathak and Roth 2005b)....

    [...]

  • ...A school choice problem (Abdulkadiroğlu and Sönmez 2003) is comprised of a number of students each of whom is to be assigned a seat at one of a number of schools....

    [...]

  • ...Later, presented with theoretical analysis (Abdulkadiroğlu and Sönmez 2003, Ergin and Sönmez 2006) and experimental evidence (Chen and Sönmez 2006) that one of the most popular school choice mechanisms, the Boston mechanism, is vulnerable to strategic manipulation and thus might not result in…...

    [...]

  • ...…priority for a school may loose her priority advantage for that school if she does not list it as his first choice, the Boston mechanism forces students to make hard and risky strategic choices (see e.g., Abdulkadiroğlu and Sönmez 2003, Ergin and Sönmez 2006, Chen and Sönmez 2006, and He 2012)....

    [...]

Journal ArticleDOI
TL;DR: The main focus of this paper is on determining the extent to which matching procedures can be designed which give agents the incentive to honestly reveal their preferences, and which produce stable matches.
Abstract: This paper considers some game-theoretic aspects of matching problems and procedures, of the sort which involve matching the members of one group of agents with one or more members of a second, disjoint group of agents, ail of whom have preferences over the possible resulting matches. The main focus of this paper is on determining the extent to which matching procedures can be designed which give agents the incentive to honestly reveal their preferences, and which produce stable matches. Two principal results are demonstrated. The first is that no matching procedure exists which always yields a stable outcome and gives players the incentive to reveal their true preferences, even though procedures exist which accomplish either of these goals separately. The second result is that matching procedures do exist, however, which always yield a stable outcome and which always give all the agents in one of the two disjoint sets of agents the incentive to reveal their true preferences.

908 citations

Posted Content
TL;DR: With the integrated software ORSEE, experimenters have a free, convenient, and very powerful tool to organize their experiments and sessions in a standardized way and several new features have been added.
Abstract: We discuss several issues regarding the organization of economic laboratory experiments such as subject pool, recruitment, scheduling, and show how we solved them with the help of the Online Recruitment System for Economic Experiments (ORSEE) version 2.0. With this integrated software experimenters have a free, convenient, and very powerful tool to organize their experiments and sessions in a standardized way. Key features are: PHP/MySQL application, multiple language/ laboratory/ subject pool/ experimenters/ experiment types/ experiment classes support, attribute query selection, random recruitment, experiment calendar, automated reputation system, automated invitation and rule based reminder mailing, subjects manage their own account, overview about registration state, user rights management, pdf output and mailing, complete logging and statistics, and customizable layout. In version 2.0 the software has been completely reprogrammed in PHP. Several new features have been added. A test system has been installed in order to visually support the reader while reading the manual (www.orsee.org).

805 citations


"From Boston to Chinese parallel to ..." refers background in this paper

  • ...25Despite our explicit announcement in the advertisement that subjects should not participate in the school choice experiment more than once and our screening before each session, six subjects participated twice, which might be due to errors occurred in our database transition from ExLab to Orsee (Greiner 2004) in summer 2010....

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  • ...…in the advertisement that subjects should not participate in the school choice experiment more than once and our screening before each session, six subjects participated twice, which might be due to errors occurred in our database transition from ExLab to Orsee (Greiner 2004) in summer 2010....

    [...]