In the recent experimental literature several social preference models have been suggested that address observed behavior not reducible to the pursuit of selfinterest. Inequality aversion is one such model where preferences are distributional. Frequently, envy is suggested as the underlying...

In this paper, we report on a series of free-form bargaining experiments in which two players have to distribute four indivisible goods among themselves. In one treatment the monetary payoffs associated with each bundle of goods are common knowledge; in a second treatment only the ordinal ranking...

Employment contracts are often incomplete, leaving many responsibilities subject to workers’ discretion. High work morale is therefore essential for sustaining voluntary cooperation and high productivity in firms. We conducted a field experiment to test whether workers reciprocate wage cuts...

What determines reciprocity in employment relations? We conducted a controlled field experiment to measure the extent to which monetary and non-monetary gifts affect workers’ performance. We find that non-monetary gifts have a much stronger impact than monetary gifts of equivalent value. We...