Template-Type: ReDIF-Paper 1.0 Author-Name: Laura Abrardi Author-X-Name-First: Laura Author-X-Name-Last: Abrardi Author-Name: Luca Colombo Author-X-Name-First: Luca Author-X-Name-Last: Colombo Author-Email: lucava.colombo@unicatt.it Author-Workplace-Name: Università Cattolica del Sacro Cuore Author-Workplace-Name: Dipartimento di Economia e Finanza, Università Cattolica del Sacro Cuore Author-Name: Piero Tedeschi Author-X-Name-First: Piero Author-X-Name-Last: Tedeschi Title: The Gains of Ignoring Risk: Insurance with Better Informed Principals. Abstract: We study a competitive insurance market in which insurers have an imperfect informative advantage over policyholders. We show that the presence of insurers privately and heterogeneously informed about risk can explain the concentration levels, the persistent profitability and the pooling of risk observed in some insurance markets. Furthermore, we find that a lower market concentration may entail an increase in insurance premia Length: 75 Creation-Date: 2019-07 File-URL: http://dipartimenti.unicatt.it/economia-finanza-def084.pdf File-Format: Application/pdf File-Function: First version, 2019 Number: def084 Classification-JEL: D43, D82, G22. Keywords: Insurance markets, Asymmetric information, Risk assessment, Market concentration. Handle: RePEc:ctc:serie1:def084