Study on the profit distribution of the mutton sheep industry chain based on the modified Shapley value method

Using the field research data of Xilin Gol League, based on the cooperative game theory, the distribution of cost-benefit and comprehensive cost-profit rate of the mutton sheep industry chain under the traditional market transaction mode was analyzed. Using the modified Shapley value method, input factors and risk factors were introduced based on the contribution of all parties, and the reasonable benefit distribution plan of the mutton sheep industry chain was calculated. The research results show that under the traditional market transaction mode, the comprehensive cost-profit ratio of each member is 1.65% ꞉ 1.61% ꞉ 4.72% ꞉ 7.90%. Herdsmen are in a disadvantaged position, and the overall cost-profit margin is extremely low. Retailers are in an absolutely dominant position, with relatively high comprehensive cost-profit margins. The amount of benefit distribution is not equal to the amount of investment and risk. Redistribution is carried out through the revised Shapley value method to obtain a benefit distribution that more closely matches the investment and risk. The ratio of comprehensive cost-to-profit ratio is 2.14% ꞉ 1.90% ꞉ 7.72% ꞉ 7.93%. Based on the above conclusions, this article proposes to strengthen the support for the production of mutton sheep to improve the efficiency of mutton sheep breeding. This can be done by encouraging slaughter and processing enterprises to develop deep-processed products and increase the added value of the industrial chain. The government’s ability to intervene and improve risk protection and benefit restraint mechanisms should also be strengthened.