We provide the first estimates of the extent of common ownership of competing firms in Australia. Combining data on market shares and substantial shareholdings, we calculate the impact of common ownership on effective market concentration. Among firms where we can identify at least one owner, 31...

Understanding the economic and social effects of the recent global trends of rising market concentration and market power has become a policy priority. To fill this knowledge gap, this paper introduces a simple simulation method, the Welfare and Competition tool (WELCOM), to estimate with...

This paper uses a unique data set of Latin American paintings auctioned by Sothebyamp;apos's between 1995 and 2002 to investigate several puzzles from the recent auctions literature. Our results suggest that: (1) the reputation of an artist and the provenance of the artwork, omitted variables in...

This paper studies intercollegiate athletics in the context of the theory of cartels. Some point to explicit attempts by the National Collegiate Athletic Association (NCAA) to restrict output and payments for factors of production as evidence of cartel behavior. Others argue that such limits...

Given its significance in practice, piecewise linear taxation has received relatively littleattention in the literature. This paper offers a simple and transparent analysis of its maincharacteristics. We fully characterize optimal tax parameters for the cases in which budgetsets are convex and...

Gender Based Taxation (GBT) satisfies Ramsey´s optimal criterion by taxing less the moreelastic labor supply of (married) women. This holds when different elasticities between menand women are taken as exogenous and primitive...

Does joint taxation disadvantage women? To answer that question, this paper begins byreviewing unitary and bargaining models of intrafamily allocation, and then discusses thedeterminants of "bargaining power" in a world without taxes...

When a deficit occurs in the funding of collective goods, it is usually covered by raising theamount of taxes or by rationing the supply of the goods. This article compares the efficiencyof these institutions. We report the results of a 2x2 experiment based on a game in the firststage of which...

We build a theoretical model to study whether a minimum wage can be welfare-improving if itis implemented in conjunction with an optimized nonlinear income tax. We consider this issuein a framework where search frictions on the labor market generate unemployment. Workersdiffer in productivity...