Over the years the control of the Government of Egypt on the agricultural sector has increasingly weakened with the progressive elimination of the input subsidy, area control, price control, procurement control, and the constraints in private sector participation in processing and trade. Policy analysis studies in Egypt have been made possible because the Government of Egypt collects and publishes significant amounts of agricultural data on a regular basis. Differences among various data sources remain and need to be harmonized, however and the range of elasticity estimates in previously undertaken studies is rather wide. This lack of precision makes these parameters less useful for policy analysis purposes. Further investigations are needed to pinpoint the source of these differences—whether it is due to data, model specification, or estimation techniques —so corrective measures can be applied to improve their precision. Only then can credible policy analysis be conducted using these parameters.