This paper reports on a field experiment testing for sunk-cost effects in an education setting. Students signing up for extra-curricular tutorial sessions randomly received a discount on the tuition fee. The sunk-cost effect predicts that students who receive larger discounts will attend fewer...

Standard economic theory predicts that firms will not invest in general training and will underinvest in specific training. Empirical evidence indicates, however, that firms do invest in general training of their workers and also points to no underinvestment in specific training. We propose a...

This chapter surveys the economics literature on overeducation. The original motivation to study this topic reports that the strong increase in the number of college graduates in the early 1970s in the United States led to a decrease in the returns to college education. We argue that Duncan and...

This paper proposes a new approach to identify the wage effects of training. The idea is to narrow down the comparison group by only taking into consideration the workers who wanted to participate in training but did not do so because of some random event. The point estimate of the return to...