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Andrei Shleifer

Bio: Andrei Shleifer is an academic researcher from Harvard University. The author has contributed to research in topics: Government & Shareholder. The author has an hindex of 171, co-authored 514 publications receiving 271880 citations. Previous affiliations of Andrei Shleifer include National Bureau of Economic Research & University of Chicago.


Papers
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TL;DR: In this article, the authors argue that the stock market is not driven solely by news about fundamentals, but by investor sentiment, i.e., beliefs held by some investors that cannot be rationally justified.
Abstract: Recent events and research findings increasingly suggest that the stock market is not driven solely by news about fundamentals. There seem to be good theoretical as well as empirical reasons to believe that investor sentiment, also referred to as fads and fashions, affects stock prices. By investor sentiment we mean beliefs held by some investors that cannot be rationally justified. Such investors are sometimes referred to as noise traders. To affect prices, these less-than-rational beliefs have to be correlated across noise traders, otherwise trades based on mistaken judgments would cancel out. When investor sentiment affects the demand of enough investors, security prices diverge from fundamental values. The debates over market efficiency, exciting as they are, would not be important if the stock market did not affect real economic activity. If the stock market were a sideshow, market inefficiencies would merely redistribute wealth between smart investors and noise traders. But if the stock market influences real economic activity, then the investor sentiment that affects stock prices could also indirectly affect real activity.

107 citations

Journal ArticleDOI
TL;DR: In this article, the authors present a model of market competition in which consumers' attention is drawn to the products' most salient attributes, and consumers compete for consumer attention via their choices of quality and price.
Abstract: We present a model of market competition in which consumers' attention is drawn to the products' most salient attributes. Firms compete for consumer attention via their choices of quality and price. Strategic positioning of a product affects how all other products are perceived. With this attention externality, depending on the cost of producing quality some markets exhibit "commoditized" price salient equilibria, while others exhibit "de-commoditized" quality salient equilibria. When the costs of quality change, innovation can lead to radical shifts in markets, as in the case of decommoditization of the coffee market by Starbucks. In the context of financial innovation, the model generates the phenomenon of "reaching for yield".

103 citations

Posted Content
TL;DR: The authors revisited La Porta's (1996) finding that returns on stocks with the most optimistic analyst long term earnings growth forecasts are substantially lower than those for stocks having the most pessimistic forecasts, and presented several further facts about the joint dynamics of fundamentals, expectations and returns for these portfolios.
Abstract: We revisit La Porta’s (1996) finding that returns on stocks with the most optimistic analyst long term earnings growth forecasts are substantially lower than those for stocks with the most pessimistic forecasts. We document that this finding still holds, and present several further facts about the joint dynamics of fundamentals, expectations, and returns for these portfolios. We explain these facts using a new model of belief formation based on a portable formalization of the representativeness heuristic. In this model, analysts forecast future fundamentals from the history of earnings growth, but they over-react to news by exaggerating the probability of states that have become objectively more likely. Intuitively, fast earnings growth predicts future Googles but not as many as analysts believe. We test predictions that distinguish this mechanism from both Bayesian learning and adaptive expectations, and find supportive evidence. A calibration of the model offers a satisfactory account of the key patterns in fundamentals, expectations, and returns.

102 citations

Book
01 Jan 2005
TL;DR: In contrast to the common image, by the late 1990s Russia had become a typical middle-income capitalist democracy as discussed by the authors, and a consensus in the US circa 2000 viewed Russia as a disastrous and threatening failure.
Abstract: During the 1990s, Russia underwent an extraordinary transformation from a communist dictatorship to a multi-party democracy, from a centrally planned economy to a market economy, and from a belligerent adversary of the West to a cooperative partner. Yet a consensus in the US circa 2000 viewed Russia as a disastrous and threatening failure, and the 1990s as a decade of catastrophe for its citizens. Analyzing a variety of economic and political data, we demonstrate a large gap between this perception and the facts. In contrast to the common image, by the late 1990s Russia had become a typical middle-income capitalist democracy.

102 citations


Cited by
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TL;DR: This paper examined legal rules covering protection of corporate shareholders and creditors, the origin of these rules, and the quality of their enforcement in 49 countries and found that common law countries generally have the best, and French civil law countries the worst, legal protections of investors.
Abstract: This paper examines legal rules covering protection of corporate shareholders and creditors, the origin of these rules, and the quality of their enforcement in 49 countries. The results show that common law countries generally have the best, and French civil law countries the worst, legal protections of investors, with German and Scandinavian civil law countries located in the middle. We also find that concentration of ownership of shares in the largest public companies is negatively related to investor protections, consistent with the hypothesis that small, diversified shareholders are unlikely to be important in countries that fail to protect their rights.

14,563 citations

Journal ArticleDOI
TL;DR: In this article, the authors examined legal rules covering protection of corporate shareholders and creditors, the origin of these rules, and the quality of their enforcement in 49 countries and found that common-law countries generally have the strongest, and French civil law countries the weakest, legal protections of investors, with German- and Scandinavian-civil law countries located in the middle.
Abstract: This paper examines legal rules covering protection of corporate shareholders and creditors, the origin of these rules, and the quality of their enforcement in 49 countries. The results show that common-law countries generally have the strongest, and Frenchcivil-law countries the weakest, legal protections of investors, with German- and Scandinavian-civil-law countries located in the middle. We also find that concentration of ownership of shares in the largest public companies is negatively related to investor protections, consistent with the hypothesis that small, diversified shareholders are unlikely to be important in countries that fail to protect their rights.

13,984 citations

Posted Content
TL;DR: The authors surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world, and presents a survey of the literature.
Abstract: This paper surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world.

13,489 citations

Journal ArticleDOI
TL;DR: Corporate Governance as mentioned in this paper surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world, and shows that most advanced market economies have solved the problem of corporate governance at least reasonably well, in that they have assured the flows of enormous amounts of capital to firms, and actual repatriation of profits to the providers of finance.
Abstract: This article surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world. CORPORATE GOVERNANCE DEALS WITH the ways in which suppliers of finance to corporations assure themselves of getting a return on their investment. How do the suppliers of finance get managers to return some of the profits to them? How do they make sure that managers do not steal the capital they supply or invest it in bad projects? How do suppliers of finance control managers? At first glance, it is not entirely obvious why the suppliers of capital get anything back. After all, they part with their money, and have little to contribute to the enterprise afterward. The professional managers or entrepreneurs who run the firms might as well abscond with the money. Although they sometimes do, usually they do not. Most advanced market economies have solved the problem of corporate governance at least reasonably well, in that they have assured the flows of enormous amounts of capital to firms, and actual repatriation of profits to the providers of finance. But this does not imply that they have solved the corporate governance problem perfectly, or that the corporate governance mechanisms cannot be improved. In fact, the subject of corporate governance is of enormous practical impor

10,954 citations

Journal ArticleDOI
TL;DR: In this article, the authors show that strategies that buy stocks that have performed well in the past and sell stocks that had performed poorly in past years generate significant positive returns over 3- to 12-month holding periods.
Abstract: This paper documents that strategies which buy stocks that have performed well in the past and sell stocks that have performed poorly in the past generate significant positive returns over 3- to 12-month holding periods. We find that the profitability of these strategies are not due to their systematic risk or to delayed stock price reactions to common factors. However, part of the abnormal returns generated in the first year after portfolio formation dissipates in the following two years. A similar pattern of returns around the earnings announcements of past winners and losers is also documented

10,806 citations