by Lauren Cohen, Karl Diether - Publications - Faculty & Research

December 2013
Article

Legislating Stock Prices

By: Lauren Cohen, Karl Diether and Christopher Malloy

We demonstrate that legislation has a simple, yet previously undetected impact on stock prices. Exploiting the voting record of legislators whose constituents are the affected industries, we show that the votes of these "interested" legislators capture important... View Details

Keywords: Legislator Incentives; Voting; Return Predictability; Lobbying; Motivation and Incentives; Government Legislation; Stocks

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March 2013
Article

Misvaluing Innovation

By: Lauren Cohen, Karl Diether and Christopher Malloy

We demonstrate that a firm's ability to innovate is predictable, persistent, and relatively simple to compute, and yet the stock market ignores the implications of past successes when valuing future innovation. We show that two firms that invest the exact same in... View Details

Keywords: Innovation; Return Predictability; R＆D; Information; Forecasting and Prediction; Research and Development; Innovation and Invention

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Article

Shorting Demand and Predictability of Returns

By: Lauren Cohen, Karl B. Diether and Christopher J. Malloy

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October 2007
Article

Supply and Demand Shifts in the Shorting Market

By: Lauren Cohen, Karl B. Diether and Christopher J. Malloy

Using proprietary data on stock loan fees and quantities from a large institutional investor, we examine the link between the shorting market and stock prices. Employing a unique identification strategy, we isolate shifts in the supply and demand for shorting. We find... View Details