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A model for regional solid waste management is described as a network flow problem and a special purpose algorithm is developed. The model is applied to waste management and facility siting decisions in the Munich Metropolitan area, West Germany. (INT

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This paper presents an application of network economics to the formation of alliances in the biotechnology-pharmaceutical industry. The framework analysis provides insights under which firms create hybrid governance forms, integrate strategy and economics into a more holistic perspective on network strategy. Firm network types link network economies, competencies and market structure, creating integration between participants and change as additional dimensions. 'Change' introduces a dynamic, evolutionary aspect. The resulting contructs involve the network dimension as a mechanism design for investigating the evolution and life cycles of firm networks. An analysis of alliances within the pharmaceutical and biotechnology industries develops the framework, including a historical tracing, and an empirical examination of the relationship between collaboration rate (CR) and market performance of major globally operating pharmaceutical firms. Case examples, supported quantitatively and qualitatively, provide evidence for the efficacy and implications of the network dimension.strategic alliances, network economies, biotechnology-pharmaceutical industries, event analysis, pharmaco-economics,

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