Data on U.S. corn quality were summarized by geographic region and market location. There were significant variations in composition (protein, oil, starch) within and across regions. Intraregional composition differences are economically significant at the first handler level, but one uncontrolled commingling will eliminate any usable differences. Physical quality, as measured by U.S. grade fac...

While much has been said about the need to promote intraregional trade and the importance of reducing associated trade costs, quantitative estimates of such costs have been lacking. In this paper a new comprehensive measure of international trade costs is applied to calculate, according to value, trade costs within and between four Asian subregions, including the Association of Southeast Asian ...

PURPOSE To study the intraindividual, interindividual, and intraregional reproducibility of multisection proton MR spectroscopic imaging in healthy adults. METHODS Six subjects were studied three times with proton MR spectroscopic imaging. Multisection long-echo-time proton MR spectroscopic imaging permits simultaneous acquisition of N-acetylaspartate (NAA), choline-containing compounds (Cho)...