The federal government delegates various aspects of financial market regulation to self-regulatory organizations (SROs) such as the New York Stock Exchange and the National Association of Securities Dealers. We model one regulatory task of an SRO, the enforcement of rules designed to prevent the...

This paper analyzes how differences in the composition of wealth between human and physical capital among families affect fertility choices. These in turn influence the dynamics of wealth and income inequality across generations through a tradeoff between quantity and quality of children. Wealth...

This paper addresses the question of whether R&D should be carried out by an independent research unit or be produced in-house by the firm marketing the innovation. We define two contractual structures. In an independent structure, the firm that markets the innovation buys it from an independent...

In this paper we analyze GMM estimators for time series models as advocated by Hayashi and Sims, and Hansen and Singleton. It is well known that these estimators achieve efficiency bounds if the number of lagged observations in the instrument set goes to infinity. <br> A new version of the GMM...

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We study a two-issue bargaining situation in which the surplus of one issue is public information, while that of the other issue is private information to one of the parties. Bargaining is by alternating offers under common time-discounting. The bargaining agenda is determined endogenously since...

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The paper considers the estimation of the coefficients of a single equation in the presence of dummy intruments. We derive pseudo ML and GMM estimators based on moment restrictions induced either by the structural form or by the reduced form of the model. The performance of the estimators is...

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There has much recent academic and policy interest in the issue of spatial clustering of economic activity, with most attention paid to the geographic concentration of high-tech industries. This paper describes patterns of geographic and industrial concentration in UK production industries at...