Market share objectives are prominent in many industries, especially where man-agers pay much attention to league table rankings. This paper explores the strategicrationale for giving managers incentives based on market share in an oligopoly com-peting in strategic substitutes. Moreover, the...

Probably the most enduring result in the theory of optimum income taxation is that,for a sufficiently thin upper tail to the skill distribution, the marginal tax rate shouldfall rather than rise with income. This paper shows that this result is highly sensitiveto a very strong informational...