230 research outputs found

    Competitive Wages in a Match with Ordered Contracts

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    A recent antitrust lawsuit against the National Residency Matching Program renewed interest in understanding the effects of a centralized match on wages of medical residents. Bulow and Levin (forthcoming) propose a simple model of the NRMP, in which firms set impersonal salaries simultaneously, before matching with workers, and show that a match leads to lower aggregate wages compared to any competitive outcome. This paper models a feature present in the NRMP, ordered contracts, that allows firms to set several contracts while determining the order in which they try to fill these contracts. I show that the low wage equilibrium of Bulow and Levin is not robust to this feature of the NRMP, and competitive wages are once more an equilibrium outcome. Furthermore, a match with ordered contracts has different properties than former models of centralized matches with multiple contracts.

    Philanthropically Funded Heroism Awards for Kidney Donors?

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    Denna rapport är den andra av två delarbeten (det tidigare publicerades i samma rapportserie 2004) som är ett resultat av ett samarbete mellan Centrum för utvärdering av medicinsk teknologi och Landstinget i Östergötland. Målet har varit att utveckla beslutsunderlaget för öppna horisontella prioriteringar inom landstinget i Östergötland genom att fördela alla kostnader för sjukdom och ohälsa på olika sjukdomsgrupper. Vi som har arbetat med denna rapport är Andrea Schmidt, hälsoekonom vid CMT, Institutionen för medicin och hälsa (IMH) samt Agneta Andersson, Fil Dr, forskare vid Socialmedicin och folkhälsovetenskap (IMH) samt FoU-handledare vid FoU-enheten för Närsjukvård vid Landstinget i Östergötland. Vi vill rikta ett stort tack till Lars Svensson, Rolf Wiklund samt Bengt Grip, KPP-gruppen vid Landstinget i Östergötland. Utan er hjälp och bistånd med data hade detta projekt inte varit genomförbart. Linköping 2007 Andrea Schmidt           Agneta Andersso

    Do Women Shy Away From Competition? Do Men Compete Too Much?

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    Competitive high ranking positions are largely occupied by men, and women remain scarce in engineering and sciences. Explanations for these occupational differences focus on discrimination and preferences for work hours and field of study. We examine if absent these factors gender differences in occupations may still occur. Specifically we explore whether women and men, on a leveled playing field, differ in their selection into competitive environments. Men and women in a laboratory experiment perform a real task under a non-competitive piece rate and a competitive tournament scheme. Although there are no gender differences in performance under either compensation, there is a substantial gender difference when participants subsequently choose the scheme they want to apply to their next performance. Twice as many men as women choose the tournament over the piece rate. This gender gap in tournament entry is not explained by performance either before or after the entry decision. Furthermore, while men are more optimistic about their relative performance, differences in beliefs only explain a small share of the gap in tournament entry. In a final task we assess the impact of non-tournament-specific factors, such as risk and feedback aversion, on the gender difference in compensation choice. We conclude that even controlling for these general factors, there is a large residual gender gap in tournament entry.

    The Effects of a Centralized Clearinghouse on Job Placement, Wages, and Hiring Practices

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    New gastroenterologists participated in a labor market clearinghouse (a "match") from 1986 through the late 1990's, after which the match was abandoned. This provides an opportunity to study the effects of a match, by observing the differences in the outcomes and organization of the market when a match was operating, and when it was not. After the GI match ended, the market unraveled. Contracts were signed earlier each year, at diffuse times, often with exploding offers. The market became less national, more local. This allows us to discern the effect of the clearinghouse: it coordinated the timing of the market, in a way that increased its thickness and scope. The clearinghouse does not seem to have had an effect on wages. As this became known among gastroenterologists, an opportunity arose to reorganize the market to once again use a centralized clearinghouse. However it proved necessary to adopt policies that would allow employers to safely delay hiring and coordinate on using the clearinghouse. The market for gastroenterologists provides a case study of market failures, the way a centralized clearinghouse can fix them, and the effects on market outcomes. In the conclusion we discuss aspects of the experience of the gastroenterology labor market that seem to generalize fairly widely.

    Unraveling Reduces the Scope of an Entry Level Labor Market: Gastroenterology With and Without a Centralized Match

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    From 1986 through 1997 the entry-level market for American gastroenterologists was organized by a centralized clearinghouse. Before, and since, it has been conducted via a decentralized market in which appointment dates have unraveled to well over a year before the start of employment. The career paths of gastroenterologists therefore offer a unique opportunity to examine the difference between the market when appointments are decentralized and early, versus when they are made later via a centralized clearinghouse. (Most centralized clearinghouses remain in use once established, and so there is no way to separate changes due to the clearinghouse from other changes that may have taken place over time.) We find that, both before and after the years in which the centralized clearinghouse was used, gastroenterologists are less mobile, and more likely to be employed at the same hospital in which they were internal medicine residents, than when the clearinghouse was in use. This suggests that the clearinghouse serves not only to coordinate the timing of appointments, but that it also increases the scope of the market, compared to decentralized markets with early appointments and exploding offers. This has implications for theories of market failure due to unraveling over time.

    Market Culture: How Norms Governing Exploding Offers Affect Market Performance

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    Many markets have organizations that influence or try to establish norms concerning when offers can be made, accepted and rejected. Examining a dozen previously studied markets suggests that markets in which transactions are made far in advance are markets in which it is acceptable for firms to make exploding offers, and unacceptable for workers to renege on commitments they make, however early. But this evidence is only suggestive, because the markets differ in many ways other than norms concerning offers. Laboratory experiments allow us to isolate the effects of exploding offers and binding acceptances. In a simple environment, in which uncertainty about applicants' quality is resolved over time, we find inefficient early contracting when firms can make exploding offers and applicants' acceptances are binding. Relaxing either of these two conditions causes matching to take place later, when more information about applicants' qualities is available, and consequently results in higher efficiency and fewer blocking pairs. This suggests that elements of market culture may play an important role in influencing market performance.
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