This study examines whether the decision of crop diversification for perennial crops is based on risk attitudes and time preferences. We conducted incentivised field experiments with farmers only cultivating rubber and those cultivating rubber and oil palm. We utilised Holt and Laury task and Coller and William task. We found that farmers who cultivate two crops are more risk‐averse, indicating that they see crop diversification as a safer option for their farms. However, the discount rates of the two groups are not significantly different. These results provide relevant information for policymakers who intend to either encourage or discourage oil palm cultivation. © 2020 The Authors. Journal of International Development published by John Wiley & Sons Ltd

中文翻译：

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风险态度和时间偏好是否是小农户作物多样化的关键因素？

这项研究检查了多年生作物的作物多样化决策是否基于风险态度和时间偏好。我们对仅种植橡胶的农民以及种植橡胶和油棕的农民进行了激励性的田间试验。我们利用了Holt和Laury任务以及Coller和William任务。我们发现，种植两种农作物的农民更倾向于规避风险，这表明他们将农作物多样化视为其农场的更安全选择。但是，两组的折现率没有显着差异。这些结果为打算鼓励或阻止油棕种植的决策者提供了相关信息。©2020作者。John Wiley＆Sons Ltd出版的《国际发展杂志》