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A simple GMM estimator for the semi-parametric mixed proportional hazard model
Bijwaard, Govert; Ridder, Geert - 2009
Ridder and Woutersen (2003) have shown that under a weak condition on the baseline hazard there exist root-N consistent estimators of the parameters in a semiparametric Mixed Proportional Hazard model with a parametric baseline hazard and unspecified distribution of the unobserved heterogeneity....
Persistent link: https://www.econbiz.de/10003909941
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Big and tall : is there a height premium or obesity penalty in the labor market?
Lee, Wang-Sheng - 2014
Previous studies have shown that both height and weight are associated with wages. However, by focusing on interpreting the partial effects of either height or weight on wages while holding all else constant, some gaps in our understanding of the complex relationship between body size and wages...
Persistent link: https://www.econbiz.de/10010434642
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A martingale representation for matching estimators
Abadie, Alberto; Imbens, Guido - 2009
been derived only for particular cases (Abadie and Imbens, 2006). This article establishes a martingale representation for … matching estimators. This representation allows the use of martingale limit theorems to derive the asymptotic distribution of … matching estimators. As an illustration of the applicability of the theory, we derive the asymptotic distribution of a matching …
Persistent link: https://www.econbiz.de/10003826104
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Fixed effects bias in panel data estimators
Buddelmeyer, Hielke; Jensen, Paul H.; Oguzoglu, Umut; … - 2008
Since little is known about the degree of bias in estimated fixed effects in panel data models, we run Monte Carlo simulations on a range of different estimators. We find that Anderson-Hsiao IV, Kiviet's bias-corrected LSDV and GMM estimators all perform well in both short and long panels....
Persistent link: https://www.econbiz.de/10003716527
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Endogenous schooling and the distribution of the gender wage gap
Hansen, Jörgen; Wahlberg, Roger - 1999
Previous studies on gender wage discrimination have relied on OLS when estimating the wage equations. However, there exists a number of recent studies, devoted to estimating the return to education, that have shown that OLS may produce biased estimates for a number of reasons. Consequently, if...
Persistent link: https://www.econbiz.de/10011316913
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The wage return to education : what hides behind the least squares bias?
Andini, Corrado - 2015
This paper combines the approach by Guimarães and Portugal (2010) with the methodology of Gelbach (2015) to investigate the determinants of the least squares bias of the wage return to education. We find that disregarding individual fixed effects is highly problematic, accounting for 95% of the...
Persistent link: https://www.econbiz.de/10010487490
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Ranking intersecting Lorenz curves
Aaberge, Rolf (contributor) - 2008
This paper is concerned with the problem of ranking Lorenz curves in situations where the Lorenz curves intersect and no unambiguous ranking can be attained without introducing weaker ranking criteria than first-degree Lorenz dominance. To deal with such situations two alternative sequences of...
Persistent link: https://www.econbiz.de/10003779034
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Robust inequality comparisons
Aaberge, Rolf; Mogstad, Magne - 2010
This paper is concerned with the problem of ranking Lorenz curves in situations where the Lorenz curves intersect and no unambiguous ranking can be attained without introducing weaker ranking criteria than first-degree Lorenz dominance. To deal with such situations Aaberge (2009) introduced two...
Persistent link: https://www.econbiz.de/10003940503
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A big fish in a small pond : ability rank and human capital investment
Elsner, Benjamin; Isphording, Ingo Eduard - 2015
We study the impact of a student's ordinal rank in a high school cohort on educational attainment several years later. To identify a causal effect, we compare multiple cohorts within the same school, exploiting idiosyncratic variation in cohort composition. We find that a student's ordinal rank...
Persistent link: https://www.econbiz.de/10011283117
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First-place loving and last-place loathing : how rank in the distribution of performance affects effort provision
Gill, David; Kissová, Zdenka; Lee, Jaesun; Prowse, … - 2015
Rank-order relative-performance evaluation, in which pay, promotion and symbolic awards depend on the rank of workers in the distribution of performance, is ubiquitous. Whenever firms use rank-order relative-performance evaluation, workers receive feedback about their rank. Using a real-effort...
Persistent link: https://www.econbiz.de/10011308986