Cost-benefit Analysis of Scale Pig Breeding in Shandong Province Based on Modified Entropy Weight—TOPSIS Model

According to the relevant statistical data in National Agricultural Cost-benefit Data Compilation (2001-2013), we use the modified entropy weight—TOPSIS model to research the cost-benefit status of scale pig breeding in Shandong Province from the perspective of comparing it with that of the entire country and 9 other main pig producing areas. The results show that compared with the national average, the cost-benefit ratio of small scale pig breeding in Shandong Province is lower, while the cost-benefit ratio of medium scale and large scale pig breeding is significantly improved; the cost-benefit ratio of small scale pig breeding in Shandong Province is basically the same as that in 9 other main pig producing areas, while the cost-benefit ratio of medium scale and large scale pig breeding is higher; the output value of main products and the purchase price of piglet are two major bottlenecks restricting the cost-benefit improvement of scale pig breeding in Shandong Province.