Whistle-blowing is seen as a powerful tool in containing corruption, although theoretical findings and experimental evidence cast doubt on its effectiveness. We expand a standard corruption model by allowing both, briber and official to initiate corruption actively, in order to assess the full effect of whistle-blowing. In our laboratory experiment we find that the effect of symmetrically punis...

This note comments on Feuerstein’s (Feuerstein, Switgard, BCollusion in industrial economics: A survey,^ forthcoming in Journal of Industry, Competition and Trade, 2005) survey of collusion theory. I start by presenting evidence from a recent real-world collusion case: the lysine industry. Based on this, I point out a few areas where collusion theory can improve: (a) the problem of equilibrium ...

student, course, and instructor characteristics in evaluation of university teaching. Am Educ Res J 1980;17 :219–37. 3 Marsh HW, Roche LA. Effects of grading leniency and low workload on students’ evaluations of teaching: popular myth, bias, validity, or innocent bystanders? J Educ Psychol 2000;92:202–28. 4 Marsh HW. Students’ evaluations of university teaching: dimensionality, reliability, val...

The study was designed to examine how active and former athletes across a different sports level perceived coaching behavior. Eighty competitive athletes (44 males and 36 females; 21.89 ± 1.48 years of age; 8.35 ± 3.65 years of competitive experience) from the University School of Physical Education in Cracow, Poland, participated in the study. They represented both individual (n = 50) and team...

We propose a method of collective sentiment classification that assumes dependencies among labels of an input set of reviews. The key observation behind our method is that the distribution of polarity labels over reviews written by each user or written on each product is often skewed in the real world; intolerant users tend to report complaints while popular products are likely to receive prais...