We model competition for a multi-attribute service, like health care services, where consumers observe attribute quality imprecisely before deciding on a provider. High quality in one attribute is more important in terms of ex post utility. Attribute quality is stochastic, providers can shift...

We build a model of collective reputation under moral hazard to analyze incentives under collective reputation. Producers can produce high quality, but it is only imperfectly detected. Products not detected as of high quality are pooled by to the collective reputation structure. Collective...