North China University of Science and Technology;
Caofeidian District;
Tangshan;
Hebei;
Tangshan Hebei 063210;
ChinaSichuan International Studies University;
Shapingba District;
Chongqing;
Chongqing 400000;
ChinaNorth China University of Science and Technology;
Caofeidian District;
Tangshan;
Hebei;
Tangshan Hebei 063210;
China;
agricultural insurance; agricultural finance; function exploration; He'nan province;