منابع مشابه
Dissecting Market Efficiency ∗
In this paper we introduce a new methodology to test market efficiency and to assess the performance of the most widely accepted asset pricing models. We use this methodology to test the semi-strong form of market efficiency in the context of publicly available accounting information. Instead of testing for a single accounting-based firm characteristic that can generate abnormal excess returns ...
متن کاملProduct Market Competition and Stock Market Efficiency
How does competition in a firm's product market affect the behavior of its stock? We examine this question in a noisy rational expectations economy in which firms operate under monopolistic competition. Production is subject to productivity shocks and requires capital, raised on a perfectly competitive equity market. Investors observe firms' past profits and collect private information about th...
متن کاملStochastic Market Efficiency
In Sec. 1 we summarize a few key properties of geometric Brownian motion that were pointed out in (Peters, 2010). We indicate the main elements of the analogy that is often drawn between this and the dynamics of markets. Section 2 introduces the concept of stochastic efficiency, namely the hypothesis that the properties of price fluctuations in real markets are strongly constrained by stability...
متن کاملMarket efficiency, managerial compensation, and real efficiency
Article history: Received 10 October 2012 Received in revised form 14 October 2013 Accepted 23 March 2014 Available online 12 April 2014 We examine how an exogenous improvement in market efficiency, which allows the stock market to obtain more precise information about the firm's intrinsic value, affects the shareholder–manager contracting problem, managerial incentives, and shareholder value. ...
متن کامل1 Market efficiency and forecasting
The interest in predicting stock prices or returns is probably as old as the markets themselves, and the literature on the subject is enormous. Fama (1970) reviews early work and provides some organizing principles. This chapter concentrates selectively on developments following Fama's review. In that review, Fama describes increasingly fine information sets in a way that is useful in organizin...
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ژورنال
عنوان ژورنال: SSRN Electronic Journal
سال: 2012
ISSN: 1556-5068
DOI: 10.2139/ssrn.2024552