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This chapter summarizes the basic characteristics of patent data as an innovation indicator and reviews some of the … surveys such as the “innovation survey” of firms and the inventor survey. They have deepened our understanding of the …
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true. Using a panel of German firms linked to the PATSTAT patent data, we study invention in both types of energy … relation between conventional (i.e. non-energy) invention and energy invention within the firms. The results from dynamic count …
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