“…In this study, the explanatory variable chosen was the level of integration of the three rural industries. Based on previous measurements and combined with the questionnaire, the index of integration of the three rural industries was constructed using the entropy method from several aspects such as the total output value of agriculture, forestry, animal husbandry and fishery, the increase in farmers' income from the extension of industrial chains, the leasing of land for large-scale production, the scale of agricultural operations and the degree of industrialization and the Engel coefficient (Kiani et al, 2021;Ridei et al, 2022;Shevchuk et al, 2022;Yusuf et al, 2022). The core explanatory variable in this study was educational human capital πππ’ π (the level of education was chosen as a proxy variable in this study).…”