The long-run reversal in the long run: Insights from two centuries of international equity returns

We perform the most comprehensive test of long-term reversal in national equity indices ever done. Having examined data from 71 countries for the years 1830 through 2019, we demonstrate a strong reversal pattern: the past long-term return negatively predicts future performance. The phenomenon is not subsumed by other established cross-sectional return patterns, including the value effect. The long-term reversal is robust to many considerations but highly unstable through time. Finally, our findings support the overreaction explanation of this anomaly.     

Asset pricing and energy consumption risk

This paper proposes energy consumption in the US as a new measure for the consumption capital asset pricing model. We find that (i) industrial energy growth produces reasonable values for the relative risk aversion coefficient and the implied risk-free rate; (ii) compared to alternative consumption measures, industrial energy performs well in explaining the cross-sectional variation in stock returns with the lowest implied risk aversion and pricing errors; (iii) the industrial energy consumption risk model performs equally well as the Fama–French three-factor model in the cross-sectional asset pricing tests; and (iv) total energy consumption risk is priced in the presence of the Fama–French factor risks.     

Optimizing a portfolio of mean-reverting assets with transaction costs via a feedforward neural network

Optimizing a portfolio of mean-reverting assets under transaction costs and a finite horizon is severely constrained by the curse of high dimensionality. To overcome the exponential barrier, we develop an efficient, scalable algorithm by employing a feedforward neural network. A novel concept is to apply HJB equations as an advanced start for the neural network. Empirical tests with several practical examples, including a portfolio of 48 correlated pair trades over 50 time steps, show the advantages of the approach in a high-dimensional setting. We conjecture that other financial optimization problems are amenable to similar approaches.     

活跃因子和杠杆因子表现分析——基于A股市场的多因子资产定价研究

多因子资产定价理论是继CAPM理论之后的重大创新,也是时下资本资产定价研究领域的最新成果。本文搜集整理多因子资产定价理论的相关文献,分析梳理其发展脉络。通过理论探究,引入以市值增长率为代理变量的活跃因子和以资产负债率来衡量的杠杆因子。基于我国A股市场进行Fama-MacBeth横截面和时间序列的回归检验,发现加入活跃因子和杠杆因子后的八因子模型解释能力可以得到进一步的增强,其中活跃因子的表现显著,而杠杆因子对股票超额收益解释能力相对较弱,但仍强于六因子模型中的风格因子。     

资产配置策略与基金系QDII收益分析

本文从前十大重仓股占比、股票集中度、行业集中度、投资区域集中度、夏普指数等指标研究基金系QDII资产配置策略与其收益的关系。统计数据结果表明,过于集中的资产配置对QDII基金收益产生了负效应。同时,QDII基金在成立时机选择、资产配置和外汇投资战略上都欠妥当。由此可见,对于QDII产品而言,资产组合的构建需要符合分散国内系统性风险的原则,否则不会使QDII这种外汇投资基金具有特殊的优势。     

A computational study on general equilibrium pricing of derivative securities

This paper analyses the accuracy of replicating portfolio methods in predicting asset prices. In a two-period, general equilibrium model with incomplete financial markets and heterogeneous agents, a computational study is conducted under various distributional assumptions. The focus is on the price of a call option on an underlying risky asset. There is evidence that the value of the (approximate) replicating portfolio is a good approximation for the general equilibrium price for CRRA preferences, but not for CARA preferences. Furthermore, there is strong evidence that the introduction of the call option reduces market incompleteness, but that the price of the underlying asset is unchanged. There is, however, inconclusive evidence on the welfare effects of the option. The author thanks Dolf Talman, Andrew Somerville, an anonymous referee, and an Associate Editor for helpful comments. Research funding from the Irish Research Council for the Humanities and Social Sciences is gratefully acknowledged.     

Universal bounds for asset prices in heterogeneous economies

We establish universal bounds for asset prices in heterogeneous complete market economies with scale invariant preferences. Namely, for each agent in the economy we consider an artificial homogeneous economy populated solely by this agent, and calculate the “homogeneous” price of an asset in each of these economies. Dumas (Rev. Financ. Stud. 2, 157–188, [1989]) conjectured that the risk free rate in a heterogeneous economy must lie in the interval determined by the minimal and maximal of the “homogeneous” risk free rates. We show that the answer depends on the risk aversions of the agents in the economy: the upper bound holds when all risk aversions are smaller than one, and the lower bound holds when all risk aversions are larger than one. The bounds almost never hold simultaneously. Furthermore, we prove these bounds for arbitrary assets.      

Real Estate Risk Exposure of Equity Real Estate Investment Trusts

This study examines the linkage between equity real estate investment trust (REIT) returns and the private real estate factor. The results reveal a tighter connection between REIT and the private real estate market starting from 1993. In addition, large-cap REITs seem to behave more like real estate than do small-cap REITs. Overall, the results are consistent with three notions: (1) that institutional investors provide information-gathering services (Bradrinath et al., Rev. Financ. Stud., 8:401–430, 1995), (2) that a more sophisticated investor base improves information flow, and (3) that a high degree of participation from institutional investors strengthens the linkage between REIT returns and the underlying real estate factor (Ziering et al., The evolution of public and private market investing in the new real estate capital markets, Prudential Real Estate Investors, Parsippany, NJ, 1997).

我国外汇储备结构的优化分析

近年来我国外汇储备的一半以上都投资在了美国债券和以美元表示的不动产上。为最大限度地降低风险,外汇储备结构需适时调整。本文在遵循安全性、流动性、收益性的原则下,结合海勒-奈特模型、杜利模型考虑的相关因素,对我国外汇储备资产结构与币种结构进行优化分析,并给出对策建议。     

贸易顺差与资产价格:内外经济失衡传导路径的一个检验

本文对一些学者提出的内外经济失衡的关系进行了考证。结果表明外部经济的失衡虽增强了货币供给的内生性,但并不必定导致内部资产价格的高涨。因此在政策选择上,要避免面对外部经济失衡采取一些应对内部经济失衡的政策工具来调节内部经济增长过快问题。同时,出于在经济发展过程中资产价格时间序列发生结构性变化的考虑,政策制定极有必要考虑资产价格因素。