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Objective: Evaluate the impact of a second supply source on price, quality and stock levels at the purchasing company. Relevance: The supply strategy defines how many suppliers an item should have and where it should be located. If working with a single supplier may bring relational benefits, working with multiple sources may reduce opportunism risks. If a local supplier reaps benefits on account of its proximity, a global supplier may result in lower costs. Methodology: The quasi-experimental method was used to follow-up a purchasing policy change at an auto parts company, which took on a second supply source for low complexity items. The research collected data on costs, quality and stock coverage for 1,480 items between 2007 and 2012, analysing new supplier's entrance and location. Results: Introducing a second supplier reduced the price, especially when a new international supplier was introduced. Decreases in quality or increases in stock coverage were not observed.

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Este ensaio teórico tem como objetivo entender a influência da filosofia e das ciências nos primeiros estudos em Marketing no início do século XX. Por meio de uma pesquisa historiográfica em documentos do período procuramos demonstrar como os primeiros pesquisadores da época se apoiaram em uma metodologia cientifica, nos mesmos moldes das ciências mais sedimentadas para garantir a sua importância tanto nos meios acadêmicos como empresarial.Palavras-chave: Positivismo; Racionalidade & Marketing; Centros de Pesquisa. Ciencia del marketing: la influencia de la filosofía y de la ciencia en los primeros estudios de marketingResumen: En este ensayo teórico tiene como objetivo comprender la influencia de la filosofía y de la ciencia en los primeros estudios en Marketing a principios del siglo XX. A través de una investigación histórica en los documentos de la época para demostrar cómo los primeros investigadores de tiempo se han basado en una metodología científica, en el sentido de las ciencias sedimentadas para asegurar su importancia tanto en el ámbito académico y empresarial.Palabras clave: Positivismo; La racionalidad y Marketing; Centros de investigación. The science of Marketing: the influence of philosophy and science in the first studies in MarketingAbstract: This theoretical essay aims to understand the influence of philosophy and science in the early studies in Marketing in the early twentieth century. Through a historiographical research in documents of the period we tried to demonstrate how the first researchers of the time were based on a scientific methodology, in the same way of the sciences most sedimentadas to guarantee its importance in the academic as well as the business.Keywords: Positivism; Rationality & Marketing; Research Center.

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Inter-organizational networks are groups of legally independent organizations working together to achieve both their individual goals to the collective goals of the group. The focus of this research is the influence of social aspects on the competitiveness of interorganizational networks, and the aim is to identify the contribution of the social aspects (strategy group, trust, commitment and cooperation) to the competitiveness of the network. It is about a qualitative, exploratory and descriptive study, through the case study of a single network of Brazilian poultry exporters of Halal. Primary data were collected through semi-structured interviews, in addition, the information obtained from these interviews were checked with information from other secondary sources such as reports and institutional materials. The results indicated that these social aspects are complementary and collaborate for a more competitive network. The contribution of this research indicates the

Inter-organizational networks are groups of legally independent organizations working together to achieve both their individual goals to the collective goals of the group. The focus of this research is the influence of social aspects on the competitiveness of inter-organizational networks, and the aim is to identify the contribution of the social aspects (strategy group, trust, commitment and cooperation) to the competitiveness of the network. It is about a qualitative, exploratory and descriptive study, through the case study of a single network of Brazilian poultry exporters of Halal. Primary data were collected through semi-structured interviews, in addition, the information obtained from these interviews were checked with information from other secondary sources such as reports and institutional materials. The results indicated that these social aspects are complementary and collaborate for a more competitive network. The contribution of this research indicates the existence of complementarities of the categories, wherein a positively reinforces the presence of another network.