乳制品进口对中国不同规模奶牛养殖效率的影响
魏艳骄,朱晶

Effects of dairy imports on the efficiency of cow farming operations of different scales in China
Yanjiao WEI,Jing ZHU
表5 乳制品进口对不同类型养殖主体养殖效率影响系数的检验结果
Table 5 Test results of the coefficient of dairy effect on the farming efficiency of farmers with different scales of operation
θsi Eit
θs1 θs2 θs3
IM 0.141***(0.049) 0.089***
(0.035)
0.004*
(0.035)