In this report techniques for looking at the export demand for three U. S. agricultural products are brought together and summarized. The products are flue-cured tobacco, wheat and cotton. The unifying theme is that analyzing substitution relations and market share relations avoids the pitfalls that have plagued earlier attempts to derive statistical estimates in international trade. Similarly, combining cross section and time series data for direct estimation also provides estimates that are free of the previously encountered statistical problems.
