Financial indices, like the S&P 500 or the Consumer Price Index, have become a ubiquitous feature of our financial markets. One index, the London InterBank Offered Rate (“Libor”), may be the world's most important number, an interest rate benchmark upon which hundreds of trillions of dollars...

If you trade securities on the basis of careful research, then you are a brilliant and shrewd investor. If you trade on the basis of a hot tip from your brother-in-law, an investment banker, then you are a criminal. What if you trade for both reasons? There is no single answer, thanks to a...

Do investor time horizons lead to inefficient business conduct in the real economy? An extensive finance literature analyzes whether particular practices (e.g., high frequency trading and stock buybacks) lead firms to operate with inefficiently myopic investment horizons, and an extensive legal...

This Article argues that a cornerstone assumption of contemporary contracts scholarship is misleading and limited. Leading academic commentary explicitly assumes that contractual responsibilities are determined in the following way: parties determine many of their duties ex ante, by specifying...