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Securities Law Commons

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Banking and Finance Law

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Columbia Law School

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Full-Text Articles in Securities Law

Petition For Rulemaking On Short And Distort, John C. Coffee Jr., Joshua Mitts, James D. Cox, Peter Molk, Edward Greene, Randall S. Thomas, Meyer-Eisenberg, Robert B. Thompson, Colleen Honigsberg, Andrew Verstein, Donald C. Langevoort, Charles K. Whitehead Jan 2020

Petition For Rulemaking On Short And Distort, John C. Coffee Jr., Joshua Mitts, James D. Cox, Peter Molk, Edward Greene, Randall S. Thomas, Meyer-Eisenberg, Robert B. Thompson, Colleen Honigsberg, Andrew Verstein, Donald C. Langevoort, Charles K. Whitehead

Faculty Scholarship

Today, some hedge funds attack public companies for the sole purpose of inducing a short-lived panic which they can exploit for profit. This sort of market manipulation harms average investors who entrust financial markets with their retirement savings. While short selling serves a critical function in the capital markets, some short sellers disseminate negative opinion about a company, inducing a panic and sharp decline in the stock price, and rapidly close that position for a profit prior to the price partially or fully rebounding. We urge the SEC to enact two rules which will discourage manipulative short selling. The petition …


Don't Go Chasing Waterfalls: Fiduciary Duties In Venture Capital Backed Startups, Sarath Sanga, Eric L. Talley Jan 2020

Don't Go Chasing Waterfalls: Fiduciary Duties In Venture Capital Backed Startups, Sarath Sanga, Eric L. Talley

Faculty Scholarship

Venture-capital-backed startups are often crucibles of conflict between common and preferred shareholders, particularly around exit decisions. Such conflicts are so common, in fact, that they have catalyzed an emergent judicial precedent – the Trados doctrine – that requires boards to prioritize common shareholders' interest and to treat preferred shareholders as contractual claimants. We evaluate the Trados doctrine using a model of startup governance that interacts capital structure, corporate governance, and liability rules. The nature and degree of inter-shareholder conflict turns not only on the relative rights and options of equity participants, but also on a firm's intrinsic value as well …


Idiosyncratic Risk During Economic Downturns: Implications For The Use Of Event Studies In Securities Litigation, Edward G. Fox, Merritt B. Fox, Ronald J. Gilson Jan 2013

Idiosyncratic Risk During Economic Downturns: Implications For The Use Of Event Studies In Securities Litigation, Edward G. Fox, Merritt B. Fox, Ronald J. Gilson

Faculty Scholarship

We reported in a recent paper that during the 2008-09 financial crisis, for the average firm, idiosyncratic risk, as measured by variance, increased by five-fold. This finding is important for securities litigation because idiosyncratic risk plays a central role in event study methodology. Event studies are commonly used in securities litigation to determine materiality and loss causation. Many bits of news affect an issuer’s share price at the time of a corporate disclosure that is the subject of litigation. Because of this, even if an issuer’s market–adjusted price changes at the time of the disclosure, one cannot determine with certainty …


Enhancing Investor Protection And The Regulation Of Securities Markets, John C. Coffee Jr. Jan 2009

Enhancing Investor Protection And The Regulation Of Securities Markets, John C. Coffee Jr.

Faculty Scholarship

This is the congressional testimony of Professor John C. Coffee, Jr., before the United States Senate Committee on Banking, Housing and Urban Affairs, March 10, 2009.