Research on the drivers of effective diffusion of government-promoted technologies in the context of food security: Taking the ratoon rice as an example
To explore the driving factors for the effective diffusion of the government-promoted technology under the background of food security, taking the ratoon rice that the government attaches great importance to in recent years as an example, this study applies a multivariate endogenous switching regression model that can correct for self-selection bias for testing. The results showed that: Firstly, the administrative guidance played a significant role in the effective diffusion of ratoon rice planting technology. The probability of farmers adopting the technology for planting ratoon rice is significantly increased when the household heads are village cadres and the villages where farmers reside have demonstration bases for ratoon rice planting. Secondly, the economic benefit is an important influence factor driving farmers to adopt ratoon rice planting technology. The sales price expectation has a significant positive effect on farmers’ adoption of ratoon rice planting technology, and the economic effect analysis verifies that farmers’ net income per mu will be increased by 25.81% when planting ratoon rice than planting single-season rice, and it will not affect farmers’ non-farm production activities. Finally, based on the findings of the study, the following countermeasures are proposed to promote the diffusion of government-promoted technologies to achieve stable development: 1) Building an effective administrative guidance mechanism to mobilize the enthusiasm of agricultural extension agencies, and reasonably planning and paying attention to the construction of demonstration bases for government-promoted technologies; 2) When making decisions on technology diffusion, the economic benefits brought by the technology promotion to the farmers should be taken into consideration, and should not affect the non-agricultural income of the farmers.
多元Logit模型的应用需要满足无关方案独立性(Independence of Irrelevant Alternative, IIA)假设。采用Hausman检验对IIA假设进行检验,结果如表5。可知,在去掉任何一种选择后均不能拒绝独立互不相关的原假设,即农户的种植结构选择均相互独立,适合用多元Logit模型进行估计。
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