This study investigates empirical methods of generating prediction intervals for WASDE forecasts of corn, soybean, and … WASDE corn, soybean, and wheat price forecasts …

Maize is a major staple food in Sub-Saharan Africa. Monthly maize prices in Tanzania are analyzed since the country is … an important maize producer and exporter in East Africa. We analyze price transmission between the five most important … urban regions of Tanzania between 2000 and 2008 which correspond to major maize production or consumption areas. We propose …

those in the literature. They do not confound specification error and rational bubbles, are implementable with a linear … procedure, and are frequently able to detect the periodically collapsing bubbles which have challenged existing tests and …

the analysis show that maize, soybeans, and wheat markets are not informationally efficient, so that investors can make …