Do Common Stocks Have Perfect Substitutes? Product Market Competition and the Elasticity of Demand for Stocks
36 Pages Posted: 26 Apr 2010 Last revised: 30 Mar 2016
Date Written: September 10, 2013
Though common stocks are one of the most important assets in an economy, little is known about their demand curves. I estimate demand curves for 144 NYSE stocks using a unique dataset of all orders, including off-equilibrium orders, during three months in 1990-1991. Connecting asset pricing with industrial organization, I find that stocks of firms in less competitive industries are more elastic because they have closer substitutes than stocks in more competitive industries. Tests that exploit the 1991 Gulf War shock and S&P 500 Index additions confirm these results.
Keywords: Elasticity, Liquidity, Product Market Competition, Stock Prices
JEL Classification: G12, G14, L11
Suggested Citation: Suggested Citation