Evidence of Risk Premiums in Foreign Currency Futures Markets
利用外汇期货价格的周度数据检验风险溢价的存在性，发现当风险价格随基准组合的条件预期收益和方差变化时，存在显著的风险溢价证据。
Weekly data for foreign currency futures prices are examined for evidence of risk premiums. Covariance risks are measured with respect to the excess returns from benchmark portfolios for consumption and wealth. When the parameters representing the prices of the covariance risks are held constant, no risk premiums are detected. However, when these prices are allowed to vary with the conditional expected returns and variances of the benchmark portfolios, possibly reflecting changing investment opportunities, strong evidence of risk premiums is obtained. Article published by Oxford University Press on behalf of the Society for Financial Studies in its journal, The Review of Financial Studies.