An econometric study of the marketing surplus of wheat and summer maize crops in Assuit governorate, Egypt

The research aimed to study the directional features of the volume of consumer indicators and the economic variables associated with this research, at the national level, represented in total production, consumption, the number of imports, the amount of exports, the food gaps, the self-sufficiency ratio, per capita consumption, daily domestic consumption, production sufficiency period for consumption, import coverage period for consumption, available for consumption, net domestic production, net imports, total domestic supply, marketing surplus, total quantities available for trade of the studied crops, namely wheat and maize during the period (2007-2019), the research also targeted measuring and determining the size of the economic and technical variables that affect both farm production, family consumption and the marketing surplus in those crops at the level of the different and total tenure categories of the study sample, which was conducted in Assiut governorate, Egypt. In addition, to achieve these goals, a model was applied regressive measure of the marketing surplus, which included four equations for cultivated area, agricultural production, household consumption and settlement surplus. This is done for each of the different categories, the total sample and for each crop separately. The study reached the following results: The analytical results showed that the economic variables at the national level of the wheat crop took a general incremental trend and that was for most of them, except for the self-sufficiency ratio and the production coverage period for consumption, which took a general decreasing trend, while the variables of the maize crop took a general increasing trend, except for the number of exports, the self-sufficiency rate and the production coverage period for consumption, its rate was decreasing. The results also showed in studying the features of economic and technical variables in the different tenure categories and at the total level of the sample that the area planted with wheat represents about 64.79%, 67.68%, 81.90% and 75.29% of the total size of the total holding of category farmers the three and the sample, respectively and that the family consumption of wheat represents about 40.15%, 6.05%, 2.19% and 6.68% of the agricultural production of it, which amounts to about 7.97, 34.73, 77.38 and 37.59 ardebs (Ardeb = 5.44 imperial or 5.619 U.S. bushels) for the three categories and the total sample. respectively. and the family consumption of maize represents about 4.25%, 0.89%, 0.42% and 0.97% of the agricultural production of summer maize. which amounted to about 11.06, 41.68, 94.23 and 46.53 ardeb in the three categories and the sample, respectively. The marketing surplus represents about 83%, 86.3%, 92.4% and 89.5% of the total agricultural production in the three categories and the sample, respectively.