The authors develop a model of strategic work interactions in collective enterprises explaining the following observation: the Israeli kibbutz, in which net collective output is distributed equally, has been an economic success, while the Soviet kolkhoz, in which net output traditionally was...

Inside information concerning a risky asset is presumed to be beneficial to its holder. Measurement of the impact and benefit of inside information is difficult because its use for financial gain is often illegal. Ideally one would like to investigate and compare two mutually isolated groups,...