Agricultural production marketing has a long history in agricultural economics and marketing literature. Planners, politicians, and agricultural economists have investigated and analyzed market structure, marketing margin, and efficiency in all levels of food markets to improve the function of agriculture and food markets and to increase the farmers share in consumer food expenditure. Food marketing literature propounds two main necessities: the important role of protein in nourishment and the economic efficiency of marketing levels to investigate market efficiency and marketing margin and to evaluate the livestock production marketing process, especially for beef. In this study, we selected beef product. We estimated marketing margin elasticity (price ratio, farmer s share, and percentage margin) with respect to determinants of meat demand, live animal supply, and marketing services supply. Results show that, for example, ten per cent increase in the price of lamb (as a good substitution for beef) will increase the beef price ratio (marketing margin) by 0.35 per cent, and ten per cent increase in the farm feed price will increase the beef price ratio (marketing margin) by 0.37 per cent. This applies to other determinants and indexes of marketing margin

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