Risk and Precautionary Saving in Two-Person Households
现有预防性储蓄文献多假设家庭如单人决策，本文研究两人家庭中预防性储蓄的存在条件，发现个体效用函数满足条件时家庭也可能有预防性储蓄，但需对风险变化类型有强假设。
The existing literature on precautionary saving is based almost entirely on the assumption that the household acts as if it consisted of a single individual decision-taker. In reality saving decisions are typically taken by two-person households. This paper examines the implications of this observation for the existence of precautionary saving, and shows that the assumption that the individual utility functions satisfy the conditions for precautionary saving to exist can imply that the household exhibits precautionary saving, but only under strong assumptions on the type of risk change being considered.