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In railway transportation, each train needs to have a timetable that specifies which track at which time will be occupied by it. This task can be addressed by automatization techniques both in generating a timetable and in optimizing an existing one. In this paper, we give an overview on the...
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This paper considers a fundamental question about the school environment - what are the long run effects of a student's ordinal rank in elementary school? Using administrative data from all public school students in Texas, we show that students with a higher third grade academic rank,...
Persistent link: https://www.econbiz.de/10011905519
Can a firm increase its workers' eff ort by introducing competition through performance-based ranking? On one hand such … ranking can increase eff ort because of individuals' desire for status from high ranks, but on the other, it can demotivate … status associated with ranking through a randomized experiment at a Bangladeshi sweater factory. Treated workers receive …
Persistent link: https://www.econbiz.de/10012118624
We study the rank of the instantaneous or spot covariance matrix Σ(t) of a multidimensional continuous semi-martingale X(t). Given highfrequency observations X(i=n), i = 0; : : : ;n, we test the null hypothesis rank (Σ(t)) ≤ r for all t against local alternatives where the average (r + 1)st...
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Tournaments are often used to improve performance in innovation contexts. Tournaments provide monetary incentives but also render teams' identity and image concerns salient. We study the effects of tournaments on team performance in a non-routine task and identify the importance of these...
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