We model the teacher-student relationship as an agency problem, where teachers are concerned with human capital formation and students --- ability signaling. The model's distinctive feature is that with grading rules unobservable for the job market the teacher finds grades costless incentives....

COVID-19 has profoundly changed the way that we study and work. For students, especially primary and middle school students, online education has become a solution to learning problems. However, online and offline education have their own characteristics and different learning efficiencies in...

In der Aussenhandelstheorie wird das Angebot und die Nachfrage mit Hilfe der Dualitaetstheorie abgebildet. Dabei wird auf nationaler Ebene das Problem der Erloesmaximierung untersucht, wobei die nationalen Faktorbestaende und die Produktionstechnologien der einzelnen Unternehmen gegeben sind....

Recent technological developments related to the extraction and processing of data have given rise to widespread concerns about a reduction of privacy in the workplace. For a growing number of low-income and subordinated racial minority work forces in the United States, however, on-the-job data...