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'you Might As Well Be Hung For A Sheep As A Lamb': The Loss Function Of An Agent

机译:“您还应该像羊羔一样被绞死”:代理人的损失功能

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摘要

Most of those who take macro and monetary policy decisions are agents. The worst penalty which can be applied to these agents is to sack them. Agents thus have loss functions which are bounded above. We work with a bell loss function which has this property. With additive uncertainty the certainty equivalence which holds for a quadratic loss function breaks down with a bell loss function when there are two or more targets. With multiplicative (Brainard) uncertainty policy is more conservative than in the absence of multiplicative uncertainty, but less so with the bell than the quadratic loss function.
机译:做出宏观和货币政策决策的大多数人都是代理人。可以适用于这些特工的最严厉的惩罚是解雇他们。因此,代理具有上面界定的损失函数。我们使用具有此属性的响铃损失功能。由于存在附加不确定性,当存在两个或多个目标时,适用于二次损失函数的确定性等价因钟形损失函数而失效。与没有乘法不确定性的情况相比,具有乘法(布兰德)不确定性的策略更为保守,但是对于贝尔而言,其策略要比二次损失函数小。

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