A case of Bovine Spongiform Encephalopathy (BSE) was found on December, 2003 in the United States, which affected offshore and domestic demands for US beef. This study evaluates the effects of the BSE outbreak on the security values of the US agribusiness and food processing firms, using an...

We reexamine commodity futures returns for evidence of fractional integration utilizing two estimators based on wavelets. We summarize basic wavelet methods for signal processing and decompose commodity futures returns by wavelet scale. We find the evidence for long memory is not conclusive...

We reexamine the volatility of agricultural commodity futures for evidence of fractional integration, providing new empirical results and extending the extant literature in important dimensions. First, we utilize two relatively new estimators based on wavelets, which are generally superior to,...

This paper reexamines foreign currency markets for evidence of fractional integration, and extends the extant literature in several important dimensions. First, we utilize a new semiparametric wavelet-based estimator, which is far superior to the more prevalent GPH estimator on the basis of mean...

A modified gravity-type model was employed to evaluate the effect of exchange rate volatility on wheat exports worldwide. Special attention was given to the econometric properties of the gravity model within panel framework. Short and long-term measures of exchange rate volatility were...

The paper emphasizes three interrelated questions about the decline in relative farm to non-farm prices in the United States since 1973; 1) Is it unusual, 2) What caused it, and 3) Is it likely to continue? We find that based on historical and international evidence this phenomenon may be considered...