Delegation and the regulation of U.S. financial markets

We analyze the institutional determinants of U.S. financial market regulation with a general model of the policy-making process in which legislators delegate authority to regulate financial risk at both the firm and systemic levels. The model explains changes in U.S. financial regulation leading up to the financial crisis. We test the predictions of the general model with a novel, comprehensive data set of financial regulatory laws enacted specifically between 1950 and 2009. The theoretical and empirical analysis finds that economic and political factors impact Congress’ decision to delegate regulatory authority to executive agencies, which in turn impacts the stringency of financial market regulation, and our estimation results indicate that political factors may have been stronger and resulted in inefficiencies.     

Optimal asset taxes in financial markets with aggregate uncertainty

This paper studies Pareto-optimal risk-sharing arrangements in a private information economy with aggregate uncertainty and ex ante heterogeneous agents. I show how to implement Pareto optima as equilibria when agents can trade claims to consumption contingent on aggregate shocks in financial markets. The first result is that if aggregate and idiosyncratic shocks are independent, the implementation of optimal allocations does not require any interventions in financial markets. This result can be extended to dynamic settings in the sense that, in this case, only savings need to be distorted, but not trades in financial markets. Second, I characterize optimal trading distortions in financial markets when aggregate and idiosyncratic shocks are not independent. In this case, optimal asset taxes must be higher for those securities that pay out in aggregate states in which consumption is more volatile. For instance, this can provide an efficiency justification for the frequently observed differential tax treatment of different asset classes, such as debt and equity claims.     

U.S. bilateral trade balances and the dollar

U.S. bilateral export and import values with seven large trading partners are tested for real exchange rate effects over 1975–1985. The results suggest that dollar devaluation would have the most favorable impact on the U.S. trade balance in the case of Japan and the least favorable in the case of Canada.     

Modeling nonlinear Granger causality between the oil price and U.S. dollar: A wavelet based approach

In this paper, we use a wavelet approach to study the linear and nonlinear Granger causality between the real oil price and the real effective U.S. Dollar exchange rate. Instead of analyzing the time series at their original level, as it is usually done, we first decompose the two macroeconomic variables at various scales of resolution using wavelet decomposition and then we study the relationships among the decomposed series on a scale by scale basis. A major finding of this paper is that the linear and nonlinear causal relationships between the real oil price and the real effective U.S. Dollar exchange rate vary over frequency bands as it depends on the time scales. Indeed, there is a strong bidirectional causal relationship between the real oil price and the real dollar exchange rate for large time horizons, i.e. corresponding to fundamentalist traders, especially fund managers and institutional investors. But, for the first frequency band which corresponds to a class of traders whom investment horizon is about 3-months and whom trading is principally speculative (noise traders), the causality runs only from the real oil prices to real effective U.S dollar exchange rate.     

Evidence of cross-asset contagion in U.S. markets

This study examines evidence of cross-asset contagion among REIT, money, stock, bond, and currency markets in the US from 2006 to 2012, which covers the subprime and European sovereign debt crisis. We apply the Granger causality test and a vector auto-regression to examine the change of causality structure. Our results show that contagion exists from medium-term bond markets to equity markets; REIT, money markets and short-term bond markets show little evidence of cross-asset contagion with other markets; and the currency market shows high co-movement and contagion with equity markets. Our findings provide more rewarding asset reallocating strategies for the investors who invest in both bond and equity markets before a crisis to consider reallocating their portfolio into REIT and money markets to benefit from diversification during a crisis period.     

Canadian and U.S. financial markets: testing the international integration hypothesis under time‐varying conditional volatility

Abstract.  This paper evaluates the international integration hypothesis, that is, that risk‐adjusted anticipated returns are identical, even when financial instruments are traded in different countries. Under time‐varying conditional volatility, this hypothesis is tested by verifying the equality between domestic and foreign risk prices associated with a multi‐factor analytic specification. The maximum‐likelihood and Kalman‐filter estimates are used to assess the national risk prices and interpret the factors. Empirically, the integration of Canadian and U.S. financial markets depends on the risk prices of two factors, which are related to certain non‐monetary events and to the conduct of monetary policies. JEL classification: G15, C32     

U.S. industry-level returns and oil prices

This paper empirically investigates and provides further support for the oil price effect documented in Driesprong et al. (2008) in the U.S. industry-level returns. We find that oil price predictability is concentrated in a relatively small number of industry-level returns, the relevant measure for a study of the oil effect is percentage change in oil spot prices, and changes in oil futures prices have virtually no prediction power for industry-level returns. With percentage changes in oil spot prices as the predictor, approximately one fifth of industry returns are oil-predictable. We detect a two trading weeks delay in reaction to oil price changes which is consistent with the Hong and Stein (1996) underreaction hypothesis. These results are robust to various alternative specifications, and are shown to be unrelated to time-varying risk premia. Moreover, we demonstrate that trading strategies based on the oil effect generate superior gains in comparison with buy-and-hold strategy in the presence of reasonable trading costs.     

Relationships among U.S. oil prices and oil industry equity indices

The cointegration analysis suggests that the pure oil industry equity system and the mixed oil price/equity index system offers more opportunities for long-run portfolio diversification and less market integration than the pure oil price systems. On a daily basis, in the oil price systems all oil prices with the exception of the 3-month futures can explain the future movements of each other. In the mixed system, none of the daily oil industry stock indices can explain the daily future movements of the New York Mercantile Exchange (NYMEX) futures prices, whereas these prices can explain the movements of independent companies engaged in exploration, refining, and marketing. The spillover analysis of oil volatility transmission suggests that the oil futures market has a matching or echoing volatility effect on the stocks of some oil sectors and a volatility-dampening effect on the stocks of others. The policy implication is that, during times of high oil volatility, traders should choose the S&P oil sector stocks that match their tolerance for volatility and use the right financial derivative to hedge against or profit from this volatility. The day effect for volatility transmission suggests that Friday has a calming effect on the volatility of oil stocks in general. The effect for Monday is not significant.     

Emission taxes vs. financial subsidies in pollution control

The polluting firm is modelled as a multi-product firm where one process produces the product and the residual as a by-product. A second process neutralizes a part of the residual harmless to the environment. We show that the subsidies to a residual abating input do not necessarily lead to a reduction in the emission into the environment, whereas the emission taxes do.     

Computing equilibria in finance economies with incomplete markets and transaction costs

Summary. Transaction costs on financial markets may have important consequences for volumes of trade, asset pricing, and welfare. This paper introduces an algorithm for the computation of equilibria in the general equilibrium model with incomplete asset markets and transaction costs. We show that economies with transaction costs can be analyzed with differentiable homotopy techniques and thus in the same framework as frictionless economies despite the existence of non-differentiabilities of agents asset demand functions and the existence of locally non-unique equilibria. We introduce an equilibrium selection concept into the computation of economic equilibria that picks out a specific equilibrium in the presence of a continuum of equilibria.Received: 2 December 2002, Revised: 15 November 2004, JEL Classification Numbers: C61, C62, C63, C68, D52, D58, G11, G12. Correspondence to: P. Jean-Jacques HeringsThis research started when Jean-Jacques Herings enjoyed the generous hospitality of the Cowles Foundation for Research in Economics at Yale University. His research has been made possible by a fellowship of the Royal Netherlands Academy of Arts and Sciences and a grant of the Netherlands Organisation for Scientific Research. We thank audiences at Stanford University, UC San Diego, and Venice for discussions on the subject. We are very grateful to an anonymous referee for very helpful comments on an earlier draft.     

Production and hedging decisions in futures and forward markets

This paper establishes the properties of (1) separation between production and risk elements, and (2) full hedging under unbiased price even in the presence of basis risk in the futures market. Also, a comparative statics highlights the richer effect of a change in the risk aversion on hedging when futures and forward markets coexist compared to that in the presence of just one market for hedging.     

Common law exceptions to employment at will and U.S. labor markets

Employment relationships in the United States were historicallygoverned by the common law doctrine of employment at will. Underthis rule, parties to an employment relationship could, in theabsence of an explicit contract, unilaterally terminate thematch at any time, for any reason, and without penalty. In recentdecades, numerous state courts have recognized 'exceptions'to employment at will that limit the circumstances of workerdismissal. Using a panel of state labor market aggregates from1965 to 1994, this article examines the effect of these exceptionson U.S. labor markets. These exceptions are seen to have noeffect on aggregate employment nor unemployment. However, temporaryemployment is observed to increase by a statistically significant15% following the adoption of an exception. The implied contractexception, in particular, appears to be responsible for thisincrease.     

中美农村金融体系的比较及启示

金融是现代经济的核心,党和国家越来越深刻认识到农村金融对于农业经济发展的重要性.本文首先对当前我国农村金融体系的构成及缺陷进行了归纳与总结;然后对美国农村金融体系从政策性农村金融体系、农村合作金融制度、农业保险3个方面进行了概述;最后,在对中美农村金融体系比较的基础上,得出了加大立法力度、完善组织体系、加强农业保险等3条完善我国农村金融体系的启示.     

Equilibrium in economies with incomplete financial markets

This paper analyses an exchange economy in the absence of Arrow-Debreu complete markets. It is assumed that trading takes place in the sequence of spot markets and futures markets for securities payable in units of account. Unlimited short-selling in securities is allowed. A general equilibrium in such an economy is a set of current and future prices (contingent on uncertain events) and a set of individual plans such that all markets are cleared. The existence of such an equilibrium is proved under usual assumptions. This is in contrast to the case of futures markets for contingent futures commodities where an equilibrium may not exist. The optimality of equilibrium allocations is also discussed.     

Market revaluations of foreign listings' reconciliations to U.S. financial reporting

The Securities and Exchange Commission requires foreign firms wishing to list their securities on the U.S. exchanges to convert their financial statements to U.S.-based generally accepted accounting principles (GAAP) in a reconciliation filing known as Form 20-F. This paper extends prior research analyzing the importance of the SEC requirement by examining the value relevance to U.S. capital markets of Form 20-F reconciliation information under two additional hypotheses: investors' anticipation of the reconciliation, and investors' perception of foreign countries' enforcement and reliability in applying local accounting rules. It is argued that the information content of the Form 20-F reconciliation data is preempted (at least partially) on the date of foreign earnings announcements because of investor anticipation of these reconciliations. Therefore, only significant unanticipated reconciliations exhibit value relevance on the date of filing. In addition, investor perception of the reliability of the reconciliations and the degree of confidence in foreign authorities enforcing local GAAP also affect the value relevance of the reconciliation data. This study hypothesizes that reconciliations made by firms from countries with mature and developed capital markets should be more value relevant to U.S. investors. The results show that both unexpected foreign earnings and anticipated reconciliations to U.S. GAAP are significantly associated with unexpected market returns during the week of earnings announcements. The region of the foreign country is also significantly associated with market returns. However, unexpected reconciliations are not significantly associated with unexpected market returns during the week of Form 20-F filing.     

The failure of the monetary exchange rate model for the Canadian-U.S. dollar

In this paper the validity of the monetary exchange rate model in the long run for the Canadian-U.S. dollar exchange rate is examined. The primary test employed is the Johansen (1991) and Johansen and Juselius (1990) cointegration technique. The effects of dummy variables and lag specification on the statistical inference are considered, and Monte Carlo simulations based on the estimated parameters are employed. Despite the use of the longest data set yet for the Canadian case, no evidence is found in favour of the monetary exchange rate model using the Johansen procedures. This result is confirmed by several other cointegration procedures. JEL Classification: F31; F41
La faillite du modèle monétaire du taux de change pour les dollars canadien et américain. Ce mémoire examine le modèle monétaire du taux de change pour savoir s'il est validé par l'expérience canado-américaine en longue période. Le test principal utilisé est la technique de cointégration de Johansen (1991) et Johansen et Juselius (1990). Les effets des variables fictives et de la spécification de la structure de délais sur l'inférence statistique sont considérés, et on utilise des simulations de Monte Carlo fondées sur les paramètres calibrés. Malgré le fait qu'on fait appel à la plus longue série chronologique utilisée dans ce type d'analyse à ce jour, on ne trouve aucun support du modèle monétaire du taux de change en utilisant les procédures de Johansen. Ce résultat est confirmé par l'utilisation de plusieurs autres procédures de cointégration.     

Information acquisition and welfare effect in a model of competitive financial markets

We analyze welfare effect of information acquisition for a model of competitive financial markets with diverse information and rational expectations. We show that in the fully revealing rational expectations equilibrium, each agent’s gain from trade in ex ante utility decreases as more agents become informed. An implication of the result is that market efficiency and ex ante Pareto optimality are not compatible in competitive financial markets with diverse information and rational expectations. Our result can be viewed as complementary to the Grossman paradox, which shows that market efficiency and individuals’ incentives to acquire information are not compatible. This paper is the first step in a projected exploration of welfare effect of information acquisition in models with diverse information.     

Communication in financial markets with several informed traders

This paper investigates the incentives for informed traders in financial markets to reveal their information truthfully to the public. In the model, a subset of traders receive noisy signals about the value of a risky asset. The signals are composed of a directional component (“high” vs. “low”) as well as a precision component that represents the quality of the directional component. Between trading periods, the informed agents make public announcements to the uninformed traders. With a sufficiently large number of informed traders, an equilibrium exists in which the directional components are credibly revealed, but not the precision components. Even though the informed traders retain some of their rivate information, the post-communication estimate of the asset value converges in probability to the full-information estimate as the number of informed traders increases. The paper is based on a chapter of my Ph.D. thesis at the University of Western Ontario and was circulated previously under the title “Public Communication Devices in Financial Markets.” I thank my dissertation committee Arthur Robson, Hari Govindan, and Al Slivinski for their guidance and support. I also thank Murali Agastya, Roland Benabou, Philippe Grégoire, Rick Harbaugh, Mike Peters, an anonymous referee and an associate editor, and seminar participants at various universities and conferences at which this paper was presented.