High performance of hog market depends on the degree of producer's reaction to price.Based on 2001-2011 quarterly data,this paper applies Nerlove' adaptive expectation model to analyze the dynamic response of amount of hog slaughtered to price expectation.The results show that price leverage in hog market was not obvious;feed price,summer and epidemic or disaster have remarkable,to some extent and weak negative effect on the amount of pig slaughtered respectively;industry policies have a certain degree of positive effects.Improving the produc...