Submitted by Fernando Salazar (fernando.salazar@votorantimcorretora.com.br) on 2013-08-22T19:23:02Z No. of bitstreams: 1 Dissertação_FernandoSalazar_final.pdf: 716420 bytes, checksum: 1581ff723525f8a036c7a630a8650453 (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2013-08-23T12:25:24Z (GMT) No. of bitstreams: 1 Dissertação_FernandoSalazar_final.pdf: 716420 bytes, checksum: 1581ff723525f8a036c7a630a8650453 (MD5) / Made available in DSpace on 2013-08-23T12:36:41Z (GMT). No. of bitstreams: 1 Dissertação_FernandoSalazar_final.pdf: 716420 bytes, checksum: 1581ff723525f8a036c7a630a8650453 (MD5) Previous issue date: 2013-08-05 / This paper aims to investigate the competition aspects of banking multiproduct operation. Based on an extension of Panzar and Rosse (1987)’s test to the case of a multiproduct banking firm, we take advantage of a new dataset constructed to Brazilian banking conglomerates to infer the impact of conglomeration on market power. We find that banks offering classic (i.e., loans and credit cards) and other bank products (i.e., brokerage services, insurance and capitalization bonds) have substantially higher market power than the ones which offer only classic products. Results suggest a positive bias on the traditional estimates of competition in which the multioutput actions are not taken into account.