Knowledge that Transforms

We apply nonparametric regression models to estimation of demand curves of the type most often used in applied research.From the demand curve estimators we derive estimates of exact consumers surplus and deadweight loss, that are the most widely used welfare and economic efficiency measures in areas of economics such as public finance.We also develop tests of the symmetry and downward sloping properties of compensated demand.We work out asymptotic normal sampling theory for kernel and series nonparametric estimators, as well as for the parametric case.The paper includes an application to gasoline demand.Empirical questions of interest here are the shape of the demand curve and the average magnitude of welfare loss from a tax on gasoline.In this application we compare parametric and nonparametric estimates of the demand curve, calculate exact and approximate measures of consumers surplus and deadweight loss, and give standard error estimates.We also analyze the sensitivity of the welfare measures to components of nonparametric regression estimators such as the number of terms in a series approximation.

[Sufficient conditions for Nash equilibrium in an n-person game are given in terms of what the players know and believe--about the game, and about each other's rationality, actions, knowledge, and beliefs. Mixed strategies are treated not as conscious randomizations, but as conjectures, on the part of other players, as to what a player will do. Common knowledge plays a smaller role in characterizing Nash equilibrium than had been supposed. When n = 2, mutual knowledge of the payoff functions, of rationality, and of the conjectures implies that the conjectures form a Nash equilibrium. When n ≥ 3 and there is a common prior, mutual knowledge of the payoff functions and of rationality, and common knowledge of the conjectures, imply that the conjectures form a Nash equilibrium. Examples show the results to be tight.]

ABSTRACT When homogeneous or closely‐linked securities trade in multiple markets, it is often of interest to determine where price discovery (the incorporation of new information) occurs. This article suggests an econometric approach based on an implicit unobservable efficient price common to all markets. The information share associated with a particular market is defined as the proportional contribution of that market's innovations to the innovation in the common efficient price. Applied to quotes for the thirty Dow stocks, the technique suggests that the preponderance of the price discovery takes place at the New York Stock Exchange (NYSE) (a median 92.7 percent information share).

ABSTRACT We provide an empirical examination of the determinants of corporate debt maturity. Our evidence offers strong support for the contracting‐cost hypothesis. Firms that have few growth options, are large, or are regulated have more long‐term debt in their capital structure. We find little evidence that firms use the maturity structure of their debt to signal information to the market. The evidence is consistent, however, with the hypothesis that firms with larger information asymmetries issue more short‐term debt. We find no evidence that taxes affect debt maturity.

ABSTRACT This article provides a new methodology for pricing and hedging derivative securities involving credit risk. Two types of credit risks are considered. The first is where the asset underlying the derivative security may default. The second is where the writer of the derivative security may default. We apply the foreign currency analogy of Jarrow and Turnbull (1991) to decompose the dollar payoff from a risky security into a certain payoff and a “spot exchange rate.” Arbitrage‐free valuation techniques are then employed. This methodology can be applied to corporate debt and over the counter derivatives, such as swaps and caps.

ABSTRACT This paper examines the structure of staged venture capital investments when agency and monitoring costs exist. Expected agency costs increase as assets become less tangible, growth options increase, and asset specificity rises. Data from a random sample of 794 venture capital‐backed firms support the predictions. Venture capitalists concentrate investments in early stage and high technology companies where informational asymmetries are highest. Decreases in industry ratios of tangible assets to total assets, higher market‐to‐book ratios, and greater R&D intensities lead to more frequent monitoring. Venture capitalists periodically gather information and maintain the option to discontinue funding projects with little probability of going public.

ABSTRACT We propose a measure of capital market integration arising from a conditional regime‐switching model. Our measure allows us to describe expected returns in countries that are segmented from world capital markets in one part of the sample and become integrated later in the sample. We find that a number of emerging markets exhibit time‐varying integration. Some markets appear more integrated than one might expect based on prior knowledge of investment restrictions. Other markets appear segmented even though foreigners have relatively free access to their capital markets. While there is a perception that world capital markets have become more integrated, our country‐specific investigation suggests that this is not always the case.

ABSTRACT We develop a simple approach to valuing risky corporate debt that incorporates both default and interest rate risk. We use this approach to derive simple closed‐form valuation expressions for fixed and floating rate debt. The model provides a number of interesting new insights about pricing and hedging corporate debt securities. For example, we find that the correlation between default risk and the interest rate has a significant effect on the properties of the credit spread. Using Moody's corporate bond yield data, we find that credit spreads are negatively related to interest rates and that durations of risky bonds depend on the correlation with interest rates. This empirical evidence is consistent with the implications of the valuation model.

We investigate the determinants of capital structure choice by analyzing the financing decisions of public firms in the major industrialized countries. At an aggregate level, firm leverage is fairly similar across the G-7 countries. We find that factors identified by previous studies as correlated in the cross-section with firm leverage in the U.S., are similarly correlated in other countries as well. However, a deeper examination of the U.S. and foreign evidence suggests that the theoretical underpinnings of the observed correlations are still largely unresolved.

ABSTRACT We study whether the behavior of stock prices, in relation to size and book‐to‐market‐equity (BE/ME), reflects the behavior of earnings. Consistent with rational pricing, high BE/ME signals persistent poor earnings and low BE/ME signals strong earnings. Moreover, stock prices forecast the reversion of earnings growth observed after firms are ranked on size and BE/ME. Finally, there are market, size, and BE/ME factors in earnings like those in returns. The market and size factors in earnings help explain those in returns, but we find no link between BE/ME factors in earnings and returns.