5,825 research outputs found

    Hecke algebras and affine flag varieties in characteristic p

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    Let G be a split semi-simple p-adic group and let H be its Iwahori-Hecke algebra with coefficients in the algebraic closure k of the finite field with p elements. Let F be the affine flag variety over k associated with G. We show, in the simply connected simple case, that a torus-equivariant K'-theory of F (with coefficients in k) admits an H-action by Demazure operators and that this provides a model for the regular representation of H.Comment: Third version. Some typos and notational issues fixe

    An Empirical Analysis of the Effects of Patents and Secrecy on Knowledge Spillovers

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    Theoretical considerations suggest that secrecy reduces spillovers almost completely through non-disclosure, while the disclosure requirement of patents generates some spillover and at the same time allows firms to appropriate knowledge. In this paper we empirically analyze whether protection by secrecy or protection by patents is associated with lower knowledge spillovers. Since the amount of knowledge spillovers is hard to measure directly, we look at the impact of the usage of protection methods in an industry on the innovation activities of firms using external knowledge. One goal is to assess if firms have moved to a more open innovation business model, i.e. allow more knowledge spillovers to occur despite using protection methods. Our estimations show that the usage of both, patents and secrecy, hinders the innovation activities of firms through the reduction of spillovers to firms in their own industry. We conclude that the appropriability effect of patents outweighs the disclosure effect. We also find some evidence that the open innovation business model has not been implemented widely. --Knowledge Spillovers,patents,secrecy,open innovation,ordered probit

    Motives for Innovation Co-operation? Evidence from the Canadian Survey of Innovation

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    In this paper we analyse the decision of firms in the Canadian manufacturing sector to co-operate on innovation projects. Our focus is on the motives behind this decision and the firm characteristics, both general and with respect to innovation activities, which influence the motives for innovation co-operation. Using data from the Canadian Survey of Innovation 2005 we find that the factors influencing the decision to co-operate in order to access external knowledge are very similar to those influencing cost-sharing motives. We also show that public funding leads firms to cooperate in order to access external knowledge and R&D. --Innovation Co-operation,Motives for Co-operation,Canadian Survey of Innovation

    Absorptive Capacity: One Size Fits All? Firm-level Analysis of Absorptive Capacity for Different Kinds of Knowledge

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    The paper empirically analyses the effect of R&D activities, human resource and knowledge management, and the organisation of knowledge sharing within a firm on the absorptive capacity of innovative firms for three different types of knowledge, namely absorptive capacity to use knowledge from a firm?s own industry, knowledge from other industries and knowledge from research institutions. Using data from the German innovation survey we investigate how firms are able to exploit knowledge from external partners for successful innovation activities. The estimation results show that the determinants of absorptive capacity differ with respect to the type of knowledge absorbed for innovation activities. In particular we find that the R&D intensity does not significantly influence absorptive capacity for intra- and inter-industry knowledge. Additionally, our results suggest that absorptive capacity is path-dependent and firms can influence their ability to exploit external knowledge by encouraging individuals? involvement in a firm?s innovation projects. --absorptive capacity,R&D,innovation management,innovation survey

    Knowledge Flows and R&D Co-operation: Firm-level Evidence from Germany

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    This paper analyzes the determinants of R&D co-operation among German manufacturing firms. Using firm level data from the Third Community Innovation Survey from Germany, we focus on the role of spillovers in explaining R&D cooperation. We also investigate firms? decisions to cooperate with research institutions or with suppliers and customers. Implementing a two-step estimation procedure, we find a positive effect of knowledge flows on the probability of R&D co-operation in most model specifications. Additionally, we show that firms with high intramural R&D budgets are more likely to cooperate with universities and research institutions than with suppliers and customers. --Spillovers,R&D Co-operation,CIS 3

    Absorptive Capacity – One Size Fits All? A Firm-level Analysis of Absorptive Capacity for Different Kinds of Knowledge

    Get PDF
    The paper empirically analyses the effect of R&D activities, human resource and knowledge management, and the organisation of knowledge sharing within a firm on the absorptive capacity of innovative firms for three different types of knowledge, namely absorptive capacity to use knowledge from a firm’s own industry, knowledge from other industries and knowledge from research institutions. Using data from the German innovation survey we investigate how firms are able to exploit knowledge from external partners for successful innovation activities. The estimation results show that the determinants of absorptive capacity differ with respect to the type of knowledge absorbed for innovation activities. In particular we find that the R&D intensity does not significantly influence absorptive capacity for intra- and inter- industry knowledge. Additionally, our results suggest that absorptive capacity is path-dependent and firms can influence their ability to exploit external knowledge by encouraging individuals’ involvement in a firm’s innovation projects.absorptive capacity, R&D, innovation management, innovation surveys

    Knowledge Flows and R&D Co-operation: Firm-level Evidence from Germany

    Get PDF
    This paper analyzes the determinants of R&D co-operation among German manufacturing firms. Using firm level data from the Third Community Innovation Survey from Germany, we focus on the role of spillovers in explaining R&D cooperation. We also investigate firms’ decisions to cooperate with research institutions or with suppliers and customers. Implementing a two-step estimation procedure, we find a significant effect of knowledge flows on the probability of R&D co-operation in most model specifications. Additionally, we show that firms with high intramural R&D budgets are more likely to cooperate with universities and research institutions than with suppliers and customers.Spillovers, R&D Co-operation, CIS 3
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