THE RISK PREMIUM FOR EQUITY: IMPLICATIONS FOR RESOURCE ALLOCATION,WELFARE AND POLICY*

Analysis of the equity premium puzzle has focused on private sector capital markets. The object of this paper is to consider the welfare and policy implications of each of the broad classes of explanations of the equity premium puzzle. As would be expected, the greater the deviation from the first‐best outcome implied by a given explanation of the equity premium puzzle, the more interventionist are the implied policy conclusions. Nevertheless, even explanations of the equity premium puzzle consistent with a general consumption‐based asset pricing model have important welfare and policy implications.     

ECONOMIC VALUATION OF ACID DEPOSITION DAMAGES

This paper summarizes estimates of the monetary value of the physical damages that acid deposition causes in the United States. These estimates were developed for the Interim Assessment of the National Acid Precipitation Assessment Program (NAPAP) but were not included in the final version of the assessment report. This paper describes this research and discusses why these estimates received so little support within the NAPAP. It outlines the role of economics in the current Integrated Assessment and discusses the extent to which lessons learned earlier have been integrated into the current assessment.     

Privatization Policies and Public Enterprise: A Survey*

This paper surveys and analyzes the economic literature on ‘privatization’ policies, restricting coverage to policies designed to improve the operating efficiency of public sector enterprises through increased exposure to competitive market forces. These include asset sales, liberalization (or deregulation) and franchising. The objectives, incentives and constraints of public and private enterprises are examined, and evidence on their comparative performance is analyzed. Public sector revenue effects from asset sale are also explored. On the basis of these considerations, the paper concludes that liberalization is an important ingredient in any policy package designed to improve the operating efficiency of public sector enterprises. Asset sale may enhance the beneficial impact of deregulation but asset sale in the absence of deregulation is unlikely to improve efficiency, and may introduce additional market distortions. Franchising is seen as an appropriate mechanism for privatization when the market is inherently monopolistic and when the government desires to retain control over output and/or price.     

中国经济之强劲增长：对东亚的寓意

中国的崛起对东亚经济产生了深刻影响。不仅中国在东北亚的近邻通过贸易和投资从中国的开放政策中获益，而且那些曾经与中国争夺国外直接投资（FDI）和出口市场的东盟国家也开始从中国的经济增长中得到好处。中国作为世界经济增长的发动机之一已经对其东亚邻国产生了积极影响。通过“东盟＋3”方案，特别是始于2002年的“中国-东盟”自由贸易协定，中国为东亚地区经济一体化提供了新的动力，从而为东亚经济增长发挥着日益重要的地缘政治和地缘经济作用。     

EXPLOITING AN ADVANTAGE--DECLINING AN ADVANTAGE

Within the context of the study, a firm is said to have an advantageover another if it obtains more customers given they both chargethe same price. Further, consumer switching costs imply thelarger the difference in the prices charged by the two firmsthe greater the proportion of consumers who switch from thehigher-priced firm to the lower-priced one. The Nash equilibriumto the price-posting game is characterized The firm with theadvantage charges a higher price Finally, it is shown that ifone firm can freely choose to have an advantage, it will rejectit. This follows as the greater the advantage, the smaller theequilibrium profits to both firms.     

Household Finance

The study of household finance is challenging because household behavior is difficult to measure, and households face constraints not captured by textbook models. Evidence on participation, diversification, and mortgage refinancing suggests that many households invest effectively, but a minority make significant mistakes. This minority appears to be poorer and less well educated than the majority of more successful investors. There is some evidence that households understand their own limitations and avoid financial strategies for which they feel unqualified. Some financial products involve a cross‐subsidy from naive to sophisticated households, and this can inhibit welfare‐improving financial innovation.     

An Experimental Study of Bond Market Pricing

An important feature of bond markets is the relationship between the initial public offering (IPO) price and the probability that the issuer defaults. On the one hand, the default probability affects the IPO price; on the other hand, the IPO price affects the default probability. It is a priori unclear whether agents can competitively price such assets. Our paper is the first to explore this question. To do so, we use laboratory experiments. We develop two flexible bond market models that are easily implemented in the laboratory. We find that subjects learn to price the bonds well after only a few repetitions.     

When Does Information Asymmetry Affect the Cost of Capital?

This paper examines when information asymmetry among investors affects the cost of capital in excess of standard risk factors. When equity markets are perfectly competitive, information asymmetry has no separate effect on the cost of capital. When markets are imperfect, information asymmetry can have a separate effect on firms’ cost of capital. Consistent with our prediction, we find that information asymmetry has a positive relation with firms’ cost of capital in excess of standard risk factors when markets are imperfect and no relation when markets approximate perfect competition. Overall, our results show that the degree of market competition is an important conditioning variable to consider when examining the relation between information asymmetry and cost of capital.     

Presidential Address: Discount Rates

Discount‐rate variation is the central organizing question of current asset‐pricing research. I survey facts, theories, and applications. Previously, we thought returns were unpredictable, with variation in price‐dividend ratios due to variation in expected cashflows. Now it seems all price‐dividend variation corresponds to discount‐rate variation. We also thought that the cross‐section of expected returns came from the CAPM. Now we have a zoo of new factors. I categorize discount‐rate theories based on central ingredients and data sources. Incorporating discount‐rate variation affects finance applications, including portfolio theory, accounting, cost of capital, capital structure, compensation, and macroeconomics.