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Full-Text Articles in Securities Law
The Failure Of Market Efficiency, William Magnuson
The Failure Of Market Efficiency, William Magnuson
Faculty Scholarship
Recent years have witnessed the near total triumph of market efficiency as a regulatory goal. Policymakers regularly proclaim their devotion to ensuring efficient capital markets. Courts use market efficiency as a guiding light for crafting legal doctrine. And scholars have explored in great depth the mechanisms of market efficiency and the role of law in promoting it. There is strong evidence that, at least on some metrics, our capital markets are indeed more efficient than they have ever been. But the pursuit of efficiency has come at a cost. By focusing our attention narrowly on economic efficiency concerns—such as competition, …
Efficient Markets, Costly Information, And Securities Research, Jeffrey N. Gordon, Lewis A. Kornhauser
Efficient Markets, Costly Information, And Securities Research, Jeffrey N. Gordon, Lewis A. Kornhauser
Faculty Scholarship
Courts, administrative policy makers and legal scholars have widely embraced the theory that well-developed markets are efficient. In this Article, Professors Gordon and Kornhauser cast doubt on the wisdom of reliance on the efficient market hypothesis as applied to various areas of corporate law. Their charge is that legal decision makers and scholars have misunderstood the assumptions and limitations of the theory and have neglected recent critical economics scholarship. Professors Gordon and Kornhauser begin by detailing the assertions of the hypothesis in relation to the workings of securities markets, focusing on various asset pricing models used to test the hypothesis …