The objective of this study is to pose and test a theoretical model able to depict the co alignment between competitive and collaborative strategies, their joint reaction to the impacts of the environment and their effects upon the performance of companies. Initially, utilizing the SCP paradigm as a theoretical platform of the subject model of the study, a structural model has been developed associating the collaborative and competitive strategies between themselves and to the environment and the latter to the performance. In the second stage, the definition of observable variables for the constitution of the complete model based on a bibliographic survey which involved 97 papers published between 1977 and 2004 was sought. The selection of the final variables resulted from the consolidation of the judgments made by six specialists from the insurance market - which had been chosen as the market to test the model - and of its reduction through confrontation with the theory, thus allowing for the concoction of the necessary hypotheses for the analysis of the legitimacy of the relationships. The third stage consisted of a field research that was implemented through a structured questionnaire that was sent to the highest echelons of management of all the insurance companies operating in Brazil and that published their statutory financial statements from the fiscal years of 2002 through 2004. Such information had been drawn from the crossing of the database of IRB - Brazil Reinsurance SA and of those from the Superintendence of Private Insurance - SUSEP. The rate of responses corresponded to 61,54% of the insurance companies in the final exhibit and to 60,26% of market share in insurance premiums in 2004. Once the collection of the indicators had been processed, the fourth and last stage dealt with the calculation of the co alignment between competitive and collaborative strategies - from the standpoint of competitive and collaborative strategies associated with firms with superior performance - and of the test of the model, attained through the modeling technique of structural equations - SEM, implemented with the use of SPSS and AMOS software. The testing of the model was realized in four versions - the original and three re- specifications - employing variables in reflexive as well as formative modes. Not only the original model proposed but also its re specifications presented very good indicators of general fit, which permitted the acceptance of the main hypotheses that had been formulated and, thereupon, the applicability of the SCP paradigm for the industry of the test. The attempt to fill a void in the use of the SEM technique actuating the variable of construct Performance as formative is not advisable, in spite of the general fit presented. Particularly for this industry, co alignment has shown itself as germane in the sensitivity of the environment and on performance, especially when it involves the variables that represent the regulation of the sector, the entry of new insurance companies and the level of renewal of policies within the same firm. Yet another rather relevant contribution of the research is the bank of variables that was produced and that can be retrieved and used as a basis for a significant number of new models in Strategy under a diversity of paradigms here, in Brazil.