Limitations of the study
There was no way to validate independently the data collected by the market clerks and the Tokar Delta Board. The clerks and the Board take the average figure for the cereals and animals presented at the market. How well they followed this method is not known. Caution should be exercised in interpreting data from one market in conjunction with another. Because so little is known about market performance around the Sudan we do not know how appropriate it was to examine cereals prices from one market in conjunction with livestock prices from another.