Identifying Price Informativeness

Eduardo Davila and Cecilia Parlatore

No 25210, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: We show that outcomes (parameter estimates and R-squareds) of regressions of prices on fundamentals allow us to recover exact measures of the ability of asset prices to aggregate dispersed information. Formally, we show how to recover absolute and relative price informativeness in dynamic environments with rich heterogeneity across investors (regarding signals, private trading needs, or preferences), minimal distributional assumptions, multiple risky assets, and allowing for stationary and non-stationary asset payoffs. We implement our methodology empirically, finding stock-specific measures of price informativeness for U.S. stocks. We find a right-skewed distribution of price informativeness, measured in the form of the Kalman gain used by an external observer that conditions its posterior belief on the asset price. The recovered mean and median are 0.05 and 0.02 respectively. We find that price informativeness is higher for stocks with higher market capitalization and higher trading volume.

JEL-codes: D82 D83 G14 (search for similar items in EconPapers)
Date: 2018-11
Note: AP CF EFG
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Citations: View citations in EconPapers (7)

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