Impact of risk on HYV adoption in Bangladesh
基于安全第一原则构建风险规避指标，发现孟加拉国农民倾向于冒险，近生存线的农民更可能采纳高产水稻品种，而大地主更规避风险且高产品种种植比例随土地规模增加而下降。
The objectives of this paper are to develop a measure of risk aversion based on the safety-first principle. The risk coefficient for a large number of farmers was positive indicating the tendency towards gambling in Bangladesh agriculture. Farmers who were near subsistence income (disaster level of income) tended to choose riskier crops such as HYV rice. The risk-aversion variable was highly correlated with demographic and socioeconomic variables. Large holders of land tended to be relatively more risk-averse than small holders of land and area allocated to HYV proportionally declined with increases in holding size. A three-equation model on HYV adoption decisions, fertilizer and hired labour was estimated with a risk-aversion variable based on the safety-first principle, and expected and significant signs were obtained with the risk-aversion variable in HYV and hired labour equations.