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Securities Law Commons

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Law and Economics

Columbia Law School

Share price accuracy

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Full-Text Articles in Securities Law

Informed Trading And Its Regulation, Merritt B. Fox, Lawrence R. Glosten, Gabriel Rauterberg Jan 2018

Informed Trading And Its Regulation, Merritt B. Fox, Lawrence R. Glosten, Gabriel Rauterberg

Faculty Scholarship

Informed trading – trading on information not yet reflected in a stock’s price – drives the stock market. Such informational advantages can arise from astute analysis of varied pieces of public news, from just released public information, or from confidential information from inside a firm. We argue that these disparate types of trading are all better regulated as part of the broader phenomenon of informed trading. Informed trading makes share prices more accurate, enhancing the allocation of capital, but also makes markets less liquid, which is costly to the efficiency of trade. Informed trading thus poses a fundamental trade-off in …


Law, Share Price Accuracy And Economic Performance: The New Evidence, Merritt B. Fox, Randall Morck, Bernard Yeung, Artyom Durnev Jan 2003

Law, Share Price Accuracy And Economic Performance: The New Evidence, Merritt B. Fox, Randall Morck, Bernard Yeung, Artyom Durnev

Faculty Scholarship

Mandatory disclosure has been at the core of U.S. securities regulation since its adoption in the early 1930s. For many decades, this fixture of our financial system was accepted with little examination. Over the last twenty years, however, mandatory disclosure has been subject to intensifying intellectual crosscurrents. Some commentators hold out the U.S. system as the standard for the world. They argue that adoption by other countries of a U.S.-styled system, with its greater corporate transparency, would enhance their economic performance. Other commentators, in contrast, insist that the U.S. mandatory disclosure regime represents a mistake, not a model. These crosscurrents …