There are several external factors can affect the international competitiveness of live pigs, including the liberalization of world trade, world pigs import, the export value of major competitors, the system environment and resource conditions. And other factors, such as professional level, the production scale, technical level, the input for production, quality and brand etc, which be classified as internal factors can also exert functions. In addition, by constructing two linear regression models, author found that export value of competitors and internal factors are the extremely important ...
