The belief that both the behavior and outcomes of students are affected by their peers is important in shaping education policy. I analyze two polar education systems -tracking and mixing- and propose several criteria for their comparison. I find that tracking is the system that maximizes...

Applicants for any given job are more or less suited to fill it, and the firm will select the best among them. Increasing the wage offer attracts more applicants and makes it possible to raise the hiring standard, thereby improving the productivity of the staff. Wages that optimize on the...

In der psychologischen Vertragsforschung wird davon ausgegangen, dass der psychologische Vertrag von Arbeitnehmern einem grundlegenden Wandel unterliegt: Ein eher an Langfristigkeit orientierter relationaler psychologischer Vertrag wird zunehmend abgelöst durch einen eher kurzfristorientierten...

We examine a situation where efforts on different tasks positively affect production but are not separately verifiable and where the manager (principal) and the worker (agent) have different ideas about how production should be carried out: agents prefer a less efficient way of production. We...