Even (Mixed) Risk Lovers are Prudent
分析了风险爱好者的效用函数性质，发现与先验信念相反，风险爱好者也是谨慎的，并愿意积累预防性储蓄。
The purpose of this note is to analyze properties of the risk lovers' utility function beyond the positive sign of its second order derivative. We show that—contrarily to a priori beliefs—risk lovers are prudent and are willing to accumulate precautionary savings.