ALTERNATIVE FUELS FOR POLLUTION CONTROL: AN EMPIRICAL EVALUATION OF BENEFITS AND COSTS

In July 1989, the Bush administration proposed a new, dramatic approach to constructing clean air legislation. In particular, the Bush proposal calls for using alternative fuels as an important component to reducing urban ozone and carbon monoxide. This paper summarizes the Bush proposal, looks briefly at other options to reduce urban air pollution, and empirically evaluates the cost effectiveness of alternative fuels as an air pollution control strategy. The paper finds that the cost per ton of emissions reduced–the measure of cost effectiveness–varies dramatically as the price of gasoline vis a vis the price of the alternative fuel changes. For this reason, the authors believe that new clean air legislation should allow for great flexibility so as to allow states to incorporate alternative fuels when they are cost effective. If oil prices turn out to be lower than expected, then forcing urban centers to adopt relatively more expensive alternative fuels would impose high costs.     

Book Reviews

Technological Collaboration in Industry; strutegy, policy and internationalization in innovation
Corporate Venturing: Creating New Businesses within the Firm
Handbook of Innovation Management
Technology and enterprise in a historical perspective
Intellectual Property for Engineers
The Ernst & Young Business Plan Guide
crnagement as a New Technology
Mass Customization: The New Frontier in Business Competition     

Auditor evaluation of loss contingencies*

Abstract. This paper examines the probability judgments made by auditors for their financial statement footnote disclosure decisions and their audit report additional paragraph decisions in the presence of material loss contingencies. In the United States these judgments are governed by SFAS No. 5 and SAS No. 58. Two prior studies have reported inconsistent results pertaining to the degree of compliance of auditors with the judgment and decision-making process implied by SFAS No. 5. In contrast, SAS No. 58 has not previously been examined with respect to auditor compliance. Results from an experiment with 64 audit partners from six firms were consistent with the hypothesis that audit partners employ the same (compensatory) judgment process when making footnote disclosure decisions as when making additional paragraph decisions. This process led the partners to make judgments for the additional paragraph decision that were in accordance with SAS No. 58. In contrast, their judgments for the footnote disclosure decision were consistent with a decision theory model of auditor behavior rather than the noncompensatory process implied by SFAS No. 5. Additional aspects of the study pertain to the additional paragraph decision of auditors. Observed judgments for these decisions are consistent with the hypothesis that additional information is conveyed beyond that provided by only a footnote disclosure. This is contrary to some recent discussions of the standards. Résumé. Les auteurs étudient les jugements relatifs aux probabilités portés par les vérificateurs dans le cadre de leurs décisions relatives à la présentation des pertes éventuelles importantes sous forme de notes infrapaginales dans les états financiers ou de paragraphes supplémentaires dans le rapport des vérificateurs. Aux États-Unis, ces jugements sont régis par le SFAS n^o 5 et le SAS n^o 58. Deux études antérieures ont donné des résultats dissemblables en ce qui a trait à la mesure dans laquelle les vérificateurs se conforment au processus de jugement et de prise de décisions que suppose le SFAS n^o 5. Le respect par les vérificateurs des normes du SAS n^o 58 n'a fait, quant à lui, l'objet d'aucune analyse. Les résultats d'une expérience menée auprès de 64 associés reponsables de la vérification dans six cabinets ont confirmé l'hypothèse selon laquelle les associés responsables de la vérification utilisent le même processus de jugement (compensatoire) lorsqu'ils décident de présenter les pertes éventuelles sous forme de notes infrapaginales que lorsqu'ils optent pour les paragraphes supplémentaires. Ce processus a amené les associés à porter des jugements pour l'ajout de paragraphes supplémentaires conformes au SAS n^o 58. Par opposition, leurs jugements relatifs à la présentation sous forme de notes infrapaginales étaient conformes à un modèle de comportement du vérificateur inspiré de la théorie de la décision plutôt qu'au processus non compensatoire que suppose le SFAS n^o 5. D'autres aspects de l'étude portent sur la décision des vérificateurs relative à l'ajout de paragraphes supplémentaires. Les jugements observés relativement à cette décision sont conformes à l'hypothèse selon laquelle d'autres renseignements sont transmis, outre ceux qui sont fournis par voie de simples notes infrapaginales. Ces résultats viennent contredire certaines analyses récentes portant sur les normes.     

Speculation Duopoly with Agreement to Disagree: Can Overconfidence Survive the Market Test?

In a duopoly model of informed speculation, we show that overconfidence may strictly dominate rationality since an overconfident trader may not only generate higher expected profit and utility than his rational opponent, but also higher than if he were also rational. This occurs because overconfidence acts like a commitment device in a standard Cournot duopoly. As a result, for some parameter values the Nash equilibrium of a two-fund game is a Prisoner's Dilemma in which both funds hire overconfident managers. Thus, overconfidence can persist and survive in the long run.     

Information Asymmetry and Asset Prices: Evidence from the China Foreign Share Discount

We examine the effect of information asymmetry on equity prices in the local A‐ and foreign B‐share market in China. We construct measures of information asymmetry based on market microstructure models, and find that they explain a significant portion of cross‐sectional variation in B‐share discounts, even after controlling for other factors. On a univariate basis, the price impact measure and the adverse selection component of the bid‐ask spread in the A‐ and B‐share markets explains 44% and 46% of the variation in B‐share discounts. On a multivariate basis, both measures are far more statistically significant than any of the control variables.     

Stock Market Volatility and Learning

We show that consumption‐based asset pricing models with time‐separable preferences generate realistic amounts of stock price volatility if one allows for small deviations from rational expectations. Rational investors with subjective beliefs about price behavior optimally learn from past price observations. This imparts momentum and mean reversion into stock prices. The model quantitatively accounts for the volatility of returns, the volatility and persistence of the price‐dividend ratio, and the predictability of long‐horizon returns. It passes a formal statistical test for the overall fit of a set of moments provided one excludes the equity premium.     

La formación en el trabajo en Europa. Determinantes y rendimiento salarial

Los autores analizan los determinantes de la participación de los trabajadores en actividades formativas y los efectos de éstas sobre los salarios. A partir de datos de seis países del Panel de Hogares de la Unión Europea del período 19952001, construyen cuatro tipos de indicadores de formación. Sus estimaciones con mínimos cuadrados ordinarios indican que las actividades formativas generan unos rendimientos salariales notables en casi todos los países analizados. Sin embargo, los rendimientos no son estadísticamente distintos de cero cuando repiten las estimaciones con modelos de efectos fijos. Por tanto, las ganancias salariales debidas a la formación podrían estar siendo sobrestimadas al no tenerse en cuenta adecuadamente otros factores.