Identifying Price Informativeness
Identifying Price Informativeness

Author: Eduardo Dávila

Publisher:

Published: 2018

Total Pages: 0

ISBN-13:

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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.

The Informativeness of Prices
The Informativeness of Prices

Author: Roland Benabou

Publisher:

Published: 1991

Total Pages: 62

ISBN-13:

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Aggregate cost uncertainty, arising from real shocks or unanticipated inflation, reduces the informativeness of prices by scrambling relative and aggregate variations. But when agents can acquire additional information, such increased noise may in fact lead them to become better informed, and price competition will intensify. We examine these issues in a model of search with learning, where consumers search optimally from an unknown price distribution while firms price optimally given consumers' search rules. We show that the decisive factor in whether inflation variability increases or reduces the incentive to search, and thereby market efficiency, is the size of informational costs.

Inflation and the Informativeness of Prices
Inflation and the Informativeness of Prices

Author: Laurence M. Ball

Publisher:

Published: 1993

Total Pages: 43

ISBN-13:

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This paper studies the welfare effects of the relative price variability arising from inflation. When agents interact in anonymous markets, with customers buying from new suppliers each period, relative price variability benefits customers and cannot harm suppliers substantially. But if customers and suppliers form long-term relationships, prices have an informational role: a potential customer uses current prices as signals of future prices. Inflation reduces the informativeness of current prices, causing customers to make costly mistakes about which relationships to enter. In addition, the reduced informativeness of prices makes demand less price-elastic, thereby increasing markups. Both effects can be quantitatively significant at moderate inflation rates.

Market Power and Price Informativeness
Market Power and Price Informativeness

Author: Marcin T. Kacperczyk

Publisher:

Published: 2022

Total Pages: 0

ISBN-13:

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The asset ownership structure in financial markets worldwide is dominated by large institutional investors. Relative to households, institutional investors own a larger fraction of assets, have a more concentrated distribution of ownership, and have significant active and passive components. We study the implications of these facts for the informational content of prices using a general equilibrium portfolio-choice model with market power and endogenous information acquisition. We decompose the effects of a changing market structure into three channels: (i) a size channel, (ii) a concentration channel, and (iii) an information passthrough channel, which we show is the quantitatively largest of the three. We find that price informativeness is non-monotonic in institutional sector's size, monotonically decreasing in institutional sector's concentration, and monotonically decreasing in the size of the passive sector both due to quantity effect and an amplifying learning effect.

Volatility and Informativeness
Volatility and Informativeness

Author: Eduardo Dávila

Publisher:

Published: 2019

Total Pages: 0

ISBN-13:

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We explore the equilibrium relation between price volatility and price informativeness in financial markets, with the ultimate goal of characterizing the type of inferences that can be drawn about price informativeness by observing price volatility. We identify two different channels (noise reduction and equilibrium learning) through which changes in price informativeness are associated with changes in price volatility. We show that when informativeness is sufficiently high (low) volatility and informativeness positively (negatively) comove in equilibrium for any change in primitives. In the context of our leading application, we provide conditions on primitives that guarantee that volatility and informativeness always comove positively or negatively. We use data on U.S. stocks between 1963 and 2017 to recover stock-specific primitives and find that most stocks lie in the region of the parameter space in which informativeness and volatility comove negatively.

Stock Price Informativeness, Cross-listings and Investment Decisions
Stock Price Informativeness, Cross-listings and Investment Decisions

Author: Thomas Gehrig

Publisher:

Published: 2006

Total Pages: 36

ISBN-13: 9782854188400

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We show that a cross-listing allows a firm to make better investment decisions because it enhances stock price informativeness. This theory of cross-listings yields a rich set of new predictions. In particular, it implies that the sensitivity of investment to stock prices should be larger for cross-listed firms. Moreover, the increase in value generated by a cross-listing (the 'cross-listing premium') should be positively related to the size of growth opportunities and negatively related to the quality of managerial information. The sensitivity of the cross-listing premium to the size of growth opportunities increases when holdings and trading become more evenly distributed between foreign and domestic markets. Last, we show that concentration of trading in the home market ('flow-back') can indeed increase the cross-listing premium for some firms.