In, 1990, the New York Stock Exchange amended its Rule 80A to restrict stock index arbitrage on days of large price movements. The authors find that Rule 80A significantly curtails--or 'collars'--index arbitrage activity. In spite of this curtailment in index arbitrage volume, they find that...

This paper empirically examines whether major domestic oil companies held down product prices relative to their less visible counterparts during the 1979 oil crisis. The authors compare company prices on unregulated fuel oil with a measure of political pressure--the level of television coverage...

The recent introduction of traded options on crude oil futures contracts at the New York Mercantile Exchange (NYMEX) gives energy economists a new tool for forecasting the price of crude oil. Since the pricing of these options requires that market participants assess the probability distribution...