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.

Economic Determinants of Price Informativeness About Future Earnings
Economic Determinants of Price Informativeness About Future Earnings

Author: Jay Junghun Lee

Publisher:

Published: 2019

Total Pages: 43

ISBN-13:

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This study investigates how the value-creation process affects the extent to which stock prices incorporate value-relevant information about future earnings. In contrast to previous studies focusing on the value-reporting process, this paper shows that strong product market power accelerates the incorporation of future earnings into current equity prices due to less uncertainty about future cash flows and that intensive long-term investment deters such incorporation because of greater uncertainty regarding future cash flows. The results suggest that firm fundamentals shaped by product market competition and long-term investment explain the price informativeness about future earnings beyond the impact of management's reporting discretion.

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.

The Effects of Competition
The Effects of Competition

Author: George Symeonidis

Publisher: MIT Press

Published: 2002-01-18

Total Pages: 558

ISBN-13: 9780262264655

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A theoretical and empirical study of the effects of competition across a broad range of industries. Policies to promote competition are high on the political agenda worldwide. But in a constantly changing marketplace, the effects of more intense competition on firm conduct, market structure, and industry performance are often hard to distinguish. This study combines game-theoretic models with empirical evidence from a "natural experiment" of policy reform. The introduction in the United Kingdom of the 1956 Restrictive Trade Practices Act led to the registration and subsequent abolition of explicit restrictive agreements between firms and the intensification of price competition across a range of manufacturing industries. An equally large number of industries were not affected by the legislation. Using data from before and after the 1956 act, this book compares the two groups of industries to determine the effect of price competition on concentration, firm and plant numbers, profitability, advertising intensity, and innovation. The book avoids two problems common to empirical studies of competition: how to measure the intensity of competition and how to unravel the links between competition and other variables. Because the change in the intensity of competition had an external cause, there is no need to measure the intensity of competition directly, and it is possible to identify one-way causal effects when estimating the impact of competition. The book also examines issues such as the industries in which collusion is more likely to occur; the effect of cartels and cartel laws on market structure and profitability; the links between competition, advertising, and innovation; and the constraints on the exercise of merger and antitrust policies.

Market Liquidity
Market Liquidity

Author: Thierry Foucault

Publisher: Oxford University Press

Published: 2023

Total Pages: 531

ISBN-13: 0197542069

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"The process by which securities are traded is very different from the idealized picture of a frictionless and self-equilibrating market offered by the typical finance textbook. This book offers a more accurate and authoritative take on this process. The book starts from the assumption that not everyone is present at all times simultaneously on the market, and that participants have quite diverse information about the security's fundamentals. As a result, the order flow is a complex mix of information and noise, and a consensus price only emerges gradually over time as the trading process evolves and the participants interpret the actions of other traders. Thus, a security's actual transaction price may deviate from its fundamental value, as it would be assessed by a fully informed set of investors. The book takes these deviations seriously, and explains why and how they emerge in the trading process and are eventually eliminated. The authors draw on a vast body of theoretical insights and empirical findings on security price formation that have come to form a well-defined field within financial economics known as "market microstructure." Focusing on liquidity and price discovery, the book analyzes the tension between the two, pointing out that when price-relevant information reaches the market through trading pressure rather than through a public announcement, liquidity may suffer. It also confronts many striking phenomena in securities markets and uses the analytical tools and empirical methods of market microstructure to understand them. These include issues such as why liquidity changes over time and differs across securities, why large trades move prices up or down, and why these price changes are subsequently reversed, and why we observe temporary deviations from asset fair values"--

The Economics, Law, and Public Policy of Market Power Manipulation
The Economics, Law, and Public Policy of Market Power Manipulation

Author: S. Craig Pirrong

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 269

ISBN-13: 1461562597

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Deterrence of market manipulation is central to the entire regulatory and legal framework governing the operation of American commodity futures markets. However, despite all of the regulatory, scholarly, and legal scrutiny of market manipulation, the subject is widely misunderstood. Federal commodity and securities laws prohibit manipulation, but do not define it. Scholarly research has failed to analyze adequately the causes or effects of manipulation, and the relevant judicial decisions are confused, confusing, and contradictory. The aim of this book is to illuminate the process of market manipulation by presenting a rigorous economic analysis of this phenomenon, including the conditions that facilitate it and its effects on market users and others. The conclusions of this analysis are used to examine critically some legal and regulatory anti-manipulation policies. The Economics, Law and Public Policy of Market Power Manipulation concludes with a set of robust and realistic tests that regulators and jurists can apply to detect and deter manipulation.

Commodity Price Dynamics
Commodity Price Dynamics

Author: Craig Pirrong

Publisher: Cambridge University Press

Published: 2011-10-31

Total Pages: 238

ISBN-13: 1139501976

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Commodities have become an important component of many investors' portfolios and the focus of much political controversy over the past decade. This book utilizes structural models to provide a better understanding of how commodities' prices behave and what drives them. It exploits differences across commodities and examines a variety of predictions of the models to identify where they work and where they fail. The findings of the analysis are useful to scholars, traders and policy makers who want to better understand often puzzling - and extreme - movements in the prices of commodities from aluminium to oil to soybeans to zinc.

Information and Learning in Markets
Information and Learning in Markets

Author: Xavier Vives

Publisher: Princeton University Press

Published: 2010-01-25

Total Pages: 422

ISBN-13: 140082950X

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The ways financial analysts, traders, and other specialists use information and learn from each other are of fundamental importance to understanding how markets work and prices are set. This graduate-level textbook analyzes how markets aggregate information and examines the impacts of specific market arrangements--or microstructure--on the aggregation process and overall performance of financial markets. Xavier Vives bridges the gap between the two primary views of markets--informational efficiency and herding--and uses a coherent game-theoretic framework to bring together the latest results from the rational expectations and herding literatures. Vives emphasizes the consequences of market interaction and social learning for informational and economic efficiency. He looks closely at information aggregation mechanisms, progressing from simple to complex environments: from static to dynamic models; from competitive to strategic agents; and from simple market strategies such as noncontingent orders or quantities to complex ones like price contingent orders or demand schedules. Vives finds that contending theories like informational efficiency and herding build on the same principles of Bayesian decision making and that "irrational" agents are not needed to explain herding behavior, booms, and crashes. As this book shows, the microstructure of a market is the crucial factor in the informational efficiency of prices. Provides the most complete analysis of the ways markets aggregate information Bridges the gap between the rational expectations and herding literatures Includes exercises with solutions Serves both as a graduate textbook and a resource for researchers, including financial analysts