Showing papers by "Lawrence H. Summers published in 1989"

What moves stock prices

Abstract: This paper estimates the fraction of the variance in aggregate stock returns that can be attributed to various kinds of news. First, we consider macroeconomic news and show that it is difficult to explain more than one third of the return variance from this source. Second, to explore the possibility that the stock market responds to information that is omitted from our specifications, we also examine market moves coincident with major political and world events. The relatively small market responses to such news, along with evidence that large market moves often occur on days without any identifiable major news releases, casts doubt on the view that stock price movements are fully explicable by news about future cash flows and discount rates.

Industry Rents: Evidence and Implications

Abstract: THE PAST FEW years have witnessed a renewed interest in the sectoral composition as well as the overall level of the economy's output. Evidence suggesting that the bulk of employment growth in the United States has occurred in sectors that are thought to provide "low wage, bad jobs" rather than in sectors that provide "high wage, good jobs" is often cited as an argument that U.S. economic performance has been poor in recent years. I At the same time, advocates of industrial policies assert that some industries are "better" for a national economy than others and urge that the government manage its influence on the economy to promote growth and competitiveness.

Positive Feedback Investment Strategies and Destabilizing Rational Speculation

Abstract: Analyses of the role of rational speculators in financial markets usually presume that such investors dampen price fluctuations by trading against liquidity or noise traders. This conclusion does not necessarily hold when noise traders follow positive-feedback investment strategies buy when prices rise and sell when prices fall. In such cases, it may pay rational speculators to try to jump on the bandwagon early and to purchase ahead of noise trader demand. If rational speculators' attempts to jump on the bandwagon early trigger positive-feedback investment strategies, then an increase in the number of forward-looking rational speculators can lead to increased volatility of prices about fundamentals.

Assessing Dynamic Efficiency: Theory and Evidence

Abstract: The issue of dynamic efficiency is central to analyses of capital accumulation and economic growth. Yet the question of what characteristics should be examined to determine whether actual economies are dynamically efficient is unresolved. This paper develops a criterion for determining whether an economy is dynamically efficient. The criterion, which holds for economies in which technological progress and population growth are stochastic, involves a comparison of the cash flows generated by capital with the level of investment. Its application to the United States economy and the economies of other major OECD nations suggests that they are dynamically efficient.

When financial markets work too well: A cautious case for a securities transactions tax

Abstract: Unlike most major industrialized nations, the United States does not impose an excise tax on securities transactions. This article examines the desirability and feasibility of implementating a U.S. Securities Transfer Excise Tax (STET) directed at curbing excesses associated with short-term speculation and at raising revenue. We conclude that strong economic efficiency arguments can be made in support of a STET that throws “sand into the gears,” in James Tobin's (1982) phrase, of our excessively well-functioning financial markets. Such a tax would have the beneficial effects of curbing instability introduced by speculation, reducing the diversion of resources into the financial sector of the economy, and lengthening the horizons of corporate managers. The efficiency benefits derived from curbing speculation are likely to exceed any costs of reduced liquidity or increased costs of capital that come from taxing financial transactions more heavily. The examples of Japan and the United Kingdom suggest that a STET is administratively feasible and can be implemented without crippling the competitiveness of U.S. financial markets. A STET at a .5% rate could raise revenues of at least $10 billion annually.

The Size and Incidence of the Losses from Noise Trading

Abstract: Recent empirical research has identified a significant amount of volatility in stock prices that cannot easily be explained by changes in fundamentals; one interpretation is that asset prices respond not only to news but also to irrational “noise trading.” We assess the welfare effects and incidence of such noice trading using an overlapping-generations model that gives investors short horizons. We find that the additional risk generated by noise trading can reduce the capital stock and consumption of the economy, and we show that part of that cost may be borne by rational investors. We conclude that the welfare costs of noise trading may be large if the magnitude of noise in aggregate stock prices is as large as suggested by some of the recent empirical litrature on the excess volatility of the market.

Employee Crime and the Monitoring Puzzle

Abstract: The simplest economic theories of crime predict that profit-maximizing firms should follow strategies of minimal monitoring with large penalties for employee crime. We investigate possible reasons why firms actually spend considerable resources trying to detect employee malfeasance. We find that the most plausible explanations for firms' large outlays on monitoring of employees-legal restrictions on penalty clauses in contracts and the adverse impact of harsh punishment schemes on worker morale-are also consistent with the payment of premium (rent-generating) wages by cost-minimizing firms.

The Size and Incidence of the Losses from Noise Trading

Abstract: Recent empirical research has identified a significant amount of volatility in stock prices that cannot be easily explained by changes in fundamentals; one interpretation is that asset prices respond not only to news but also to irrational "noise trading." We assess the welfare effects and incidence of such noise trading using an overlapping-generations model that gives investors short horizons. We find that the additional risk generated by noise trading can reduce the capital stock and consumption of the economy, and we show that part of that cost may be borne by rational investors. We conclude that the welfare costs of noise trading may be large if the magnitude of noise in aggregate stock prices is as large as suggested by some of the recent empirical literature on the excess volatility of the market.

Consumption growth parallels income growth

Abstract: This paper argues that the versions of both permanent income and life—cycle theories which have recently become fashionable are inconsistent with the grossest features of cross—country and crosssection data on consumption and income. There is clear evidence tha:

The Size and Incidence of the Losses from Noise Trading

Abstract: Recent empirical research has identified a significant amount of volatility in stock prices that cannot be easily explained by changes in fundamentals; one interpretation is that asset prices respond not only to news but also to irrational "noise trading." We assess the welfare effects and incidence of such noise trading using an overlapping-generations model that gives investors short horizons. We find that the additional risk generated by noise trading can reduce the capital stock and consumption of the economy, and we show that part of that cost may be borne by rational investors. We conclude that the welfare costs of noise trading may be large if the magnitude of noise in aggregate stock prices is as large as suggested by some of the recent empirical literature on the excess volatility of the market.

When financial markets work too well: a cautious case for a securities transactions tax

Abstract: Unlike most major industrialized nations, the United States does not impose an excise tax on securities transactions. This article examines the desirability and feasibility of implementating a U.S. Securities Transfer Excise Tax (STET) directed at curbing excesses associated with short-term speculation and at raising revenue. We conclude that strong economic efficiency arguments can be made in support of a STET that throws “sand into the gears,” in James Tobin's (1982) phrase, of our excessively well-functioning financial markets. Such a tax would have the beneficial effects of curbing instability introduced by speculation, reducing the diversion of resources into the financial sector of the economy, and lengthening the horizons of corporate managers. The efficiency benefits derived from curbing speculation are likely to exceed any costs of reduced liquidity or increased costs of capital that come from taxing financial transactions more heavily. The examples of Japan and the United Kingdom suggest that a STET is administratively feasible and can be implemented without crippling the competitiveness of U.S. financial markets. A STET at a .5% rate could raise revenues of at least $10 billion annually.