Made available in DSpace on 2010-04-20T20:14:49Z (GMT). No. of bitstreams: 0 Previous issue date: 1994-11-22T00:00:00Z / Trata dos sistemas de compras observados nas organizações: brasileiras. Analisa, de um lado, a função compras das empresas privadas': subdividida em duas vertentes, denominadas de 'compras tradicional' e 'compras just-in-time', e de outro lado, estuda a sistemática observada no setor público e disciplinada pela lei 8 666/93 (Lei de Licitações e Contratos da Administração Pública). Finalmente traça uma comparação entre os dois modelos. / This study deals with purchasing systems in Brazilian private and public organizations. Initially, it analyses the purchasing function in private companies. The analysis is divided into two segments: traditional purchasing and just-in-time purchasing. Afterwards, the procedures observed in the public sector purchasing system are studied. They are disciplined by Federal Law 8.666/93 (Bidding Law and Public Administration Contracts). Finally, it describes a comparison between the two models. This comparison shows the objectives' distinction (only the public purchasing search for the equality among the suppliers) and the difficulties of the public sector in fulfilling the goals of efficiency, which are presently achieved by private company in purchasing and supply management.

Submitted by Elba Lopes (elba.lopes@fecap.br) on 2017-02-06T23:53:43Z No. of bitstreams: 2 Amauri_Laino_Tavares.pdf: 2637187 bytes, checksum: 52e1aa08ebb38c3a58184830dada23e5 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-02-06T23:53:43Z (GMT). No. of bitstreams: 2 Amauri_Laino_Tavares.pdf: 2637187 bytes, checksum: 52e1aa08ebb38c3a58184830dada23e5 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2014-02-27 / The objective of this work is to compare the behavior of indicators of efficiency of acquirers and dominant financial institutions in M&A operations in Brazil before and after these transactions. To fulfill the objectives of this research an event study was performed considering sixty transactions between 1994 and 2012, which also considered 17 indicators classified in three categories: I- Profit Efficiency, II- Operational Efficiency and III- Managerial Efficiency. The comparison was made through parametric and non-parametric tests in order to identify significant changes in the cross sectional efficiency levels of the firms in the post-transaction moment. The results showed that for a significance ?=0.10, amongst the 17 variables, seven behaved diferently after the operations. Of the four ratios of the category I-Profit Efficiency, the one that presented significant changes performed worse in terms of Operating Profit on Total Assets. In regards to the eleven indicators of the category II- Operating Efficiency, there were five identified with significant variations, amongst them, the only one that showed improved efficiency was the ratio of Administrative Expenses on Credit Operations. On the other hand, the other four variables, Operating Expenses on Total Assets, Total Expenses on Total Assets, Expenses in Financial Intermediation on Debt, and Other Operating Expenses on Total Expenses showed reduction of operating efficiency. Last, for the category III-Managerial Efficiency, of its two indicators, only the indicator of Profits before Taxes on Equity demonstrated significant variations, which showed losses in terms of efficiency as well. The conclusions about the analysis of these variations suggest that, although M&A's motivations are frequently explained as a possibility of gain in terms of efficiency for the merged companies, it was not possible to find evidence of the predominance of these benefits in the Brazilian bank industry operations yet. It makes it necessary to perform additional research that investigates the possibility of the existence of other type of gains due to theses events. / O objetivo deste trabalho ?? comparar o comportamento de indicadores de efici??ncia de institui????es financeiras adquirentes ou dominantes em processos de Fus??es e Aquisi????es no Brasil nos per??odos anterior e posterior ?? realiza????o destas opera????es. Para o cumprimento do objetivo foi realizado um estudo de evento que abrangeu sessenta transa????es realizadas entre 1994 e 2012, o qual considerou 17 indicadores classificados em tr??s categorias: I-Efici??ncia de Lucros, II- Efici??ncia Operacional e III- Efici??ncia Gerencial. A compara????o foi realizada por meio de testes de diferen??as de m??dias (param??tricos) e medianas (n??o param??tricos) com o intuito de se identificarem altera????es significantes nos patamares de efici??ncia em cross section das institui????es no per??odo p??s-transa????o. Os resultados mostraram que para um n??vel de signific??ncia ?=0,10, dentre as 17 vari??veis estudadas, sete comportaram-se diferentemente ap??s as opera????es. Dos quatro indicadores classificados na categoria I-Efici??ncia de Lucros apenas um apresentou altera????o significante, implicando perda de efici??ncia em termos de Lucro Operacional sobre Ativo Total. Com rela????o aos onze indicadores da categoria II- Efici??ncia Operacional foi identificado que cinco deles apresentaram mudan??as significantes, sendo que o ??nico deste grupo que implicou ganhos de efici??ncia foi o indicador de Despesas Administrativas sobre Opera????es de Cr??dito. Por outro lado, as outras quatro vari??veis, Despesas Operacionais sobre Ativo Total, Despesas Totais sobre Ativo Total, Despesas da Intermedia????o Financeira sobre Passivos e Outras Despesas Operacionais sobre Despesas Totais mostraram perda de efici??ncia. Finalmente, para a categoria III- Efici??ncia Gerencial, dentre seus dois indicadores, apenas o indicador de Resultado antes de Impostos sobre Patrim??nio L??quido demonstrou altera????o significante, apontando tamb??m redu????o de efici??ncia. As conclus??es acerca da an??lise do comportamento das vari??veis indicam que, apesar de a ocorr??ncia de F&A ser frequentemente motivada por poss??veis ganhos de efici??ncia ??s empresas fundidas, ainda n??o ?? poss??vel constatar predomin??ncia desse fen??meno entre as opera????es promovidas por institui????es financeiras banc??rias no Brasil. Torna-se ent??o necess??ria ent??o, a realiza????o de estudos adicionais que explorem a possibilidade de exist??ncia de outras formas de ganhos em decorr??ncia desses eventos.