This manuscript develops an empirical test for identifying the presence of non-price discriminatory trade in the Japanese wheat imports. The test only requires statistical comparison of the mean markups by port of import, by class of wheat, and country of origin. The non-parametric test reveals...

This article applied the constant market share (CMS) model to investigate the performance of China's export in agri-food products from 1980-96. The CMS results revealed a downward trend of China's competitiveness in agri-food exports over the period under the study. Some evidence was found that...