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Columbia Law School

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Shocking Financed Emissions: The Effect Of Economic Volatility On The Portfolio Footprinting Of Financial Institutions, Ilmi Granoff, Tonya Lee May 2024

Shocking Financed Emissions: The Effect Of Economic Volatility On The Portfolio Footprinting Of Financial Institutions, Ilmi Granoff, Tonya Lee

Sabin Center for Climate Change Law

Many financial institutions are now calculating and disclosing their financed emissions, a class of metrics enabling these institutions to calculate the greenhouse gas (GHG) emissions associated with investment and lending activities. These institutions have widely adopted the metric to estimate exposure to climate-related financial risk associated with GHG-emitting activities and to provide shareholders and investors a picture of how their financial activity impacts global climate change. Financed emissions metrics, despite widespread adoption, face two key methodological challenges: lack of comparability of outputs within and between portfolios, and vulnerability of calculations to portfolio volatility. Markets are naturally volatile, but the economic …


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 …


Short And Distort, Joshua Mitts Jan 2020

Short And Distort, Joshua Mitts

Faculty Scholarship

Pseudonymous attacks on public companies are followed by stock price declines and sharp reversals. These patterns are likely driven by manipulative stock options trading by pseudonymous authors. Among 1,720 pseudonymous attacks on mid- and large-cap firms from 2010 to 2017, I identify over $20.1 billion in mispricing. Reputation theory suggests these reversals persist because pseudonymity allows manipulators to switch identities without accountability.


Remapping The Charitable Deduction, David Pozen Jan 2006

Remapping The Charitable Deduction, David Pozen

Faculty Scholarship

If charity begins at home, scholarship on the charitable deduction has stayed at home. In the vast legal literature, few authors have engaged the distinction between charitable contributions that are meant to be used within the United States and charitable contributions that are meant to be used abroad. Yet these two types of contributions are treated very differently in the Code and raise very different policy issues. As Americans' giving patterns and the U.S. nonprofit sector grow increasingly international, the distinction will only become more salient.

This Article offers the first exploration of how theories of the charitable deduction apply …