Choice of Varieties by Sri Lanka Rice Farmers: Comparing Alternative Decision Models
比较了三种风险决策模型（多属性效用最大化、单属性效用最大化和预期利润最大化）在解释斯里兰卡小规模稻农选择传统品种与高产品种行为上的表现，发现预期效用模型优于预期利润模型，且单属性效用模型优于多属性模型。
Abstract Sri Lanka rice farmers are faced with a choice between traditional and high‐yielding rice varieties. Three risky‐choice models are compared to explain producer behavior. Forty farmers with typically small rice areas were studied. Choice criteria compared were multiple (two)‐attribute utility maximization, single (profit)‐attribute utility maximization, and expected profit maximization. Expected utility maximization performed better than expected profit maximization: single‐attribute utility maximization outperformed the more complex multiattribute utility model. The importance of careful elicitation of subjective probability distributions is emphasized. Rice farmers appear to allocate their land between available technologies in an economically rational way.