TY - BOOK AU - Espinosa,Francisco AU - Ray,Debraj ED - National Bureau of Economic Research. TI - Noisy Agents T2 - NBER working paper series PY - 2018/// CY - Cambridge, Mass. PB - National Bureau of Economic Research N1 - May 2018; Hardcopy version available to institutional subscribers N2 - Agents signal their type in a principal-agent model; the principal seeks to retain good agents. Types are signaled with some ambient noise. Agents can choose to add or remove additional noise at a cost. It is shown that monotone retention strategies, in which the principal keeps the agent if the signal crosses some threshold, are generically never equilibria. The main result identifies an equilibrium with a bounded retention zone, in which the principal is wary of both excessively good and excessively bad signals: she retains the agent if the signal is "moderate" and replaces him otherwise. The equilibria we uncover are robust to various extensions: non-normal signal structures, non-binary types, interacting agents, costly mean-shifting, or dynamics with term limits. We discuss applications to risky portfolio management, fake news and noisy government statistics UR - https://www.nber.org/papers/w24627 UR - http://dx.doi.org/10.3386/w24627 ER -