MAP20120001985 Model exposure could drive up reinsurance demand US reinsurance buyers continue to increase retentions but reinsurers will be hoping that model changes will increase demand En: Reactions. - London : Euromoney Institutional Investor PLC, 1981- = ISSN 0953-5640. - 01/11/2011 Número Octubre - noviembre 2011 1. Ranking . 2. Reaseguro . 3. Beneficios . 4. Grupos reaseguradores . 5. Reaseguro cedido . 6. Estados Unidos .