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on Technology and Industrial Dynamics |
| By: | Carolina Castaldi; Koen Frenken; Bart Los |
| Abstract: | We investigate how variety affects the innovation output of a region. Borrowing arguments from theories of recombinant innovation, we expect that related variety will enhance innovation as related technologies are more easily recombined into a new technology. However, we also expect that unrelated variety enhances technological breakthroughs, since radical innovation often stems from connecting previously unrelated technologies opening up whole new functionalities and applications. Using patent data for US states in the period 1977-1999 and associated citation data, we find evidence for both hypotheses. Our study thus sheds a new and critical light on the related-variety hypothesis in economic geography. |
| Keywords: | recombinant innovation, regional innovation, superstar patents, technological variety, evolutionary economic geography |
| JEL: | O31 R11 |
| Date: | 2013–02 |
| URL: | http://d.repec.org/n?u=RePEc:dgr:tuecis:wpaper:1303&r=tid |
| By: | Cevikarslan, Salih (UNU-MERIT, and SBE, Maastricht University) |
| Abstract: | The aims of this paper are twofold. The first is to analyse the interaction between research and development (R&D) activities of firms and heterogeneous consumer preferences in structuring the evolution of an industry. The second is to explore the effects of patent life and patent breadth on market outcomes. To answer these research questions, an evolutionary, multi-agent based, sector-level cumulative innovation model is designed. The model addresses supply and demand sides of the market simultaneously with the co-evolution of heterogeneous consumer preferences, heterogeneous firm knowledge bases and technology levels at the micro level. In line with the evolutionary modelling tradition, we have a search algorithm-innovation and imitation of products by firms - a selection of algorithm-revealed preferences of the consumers - and a population of objects in which variation is expressed and on which selection operates: namely, firms (Windrum, 2004). Firms compete on quality and price of their products in an oligopolistic market whereas consumers, constrained by their computational limits, act to maximize their utility with their product choices in a boundedly rational way. There is continuous firm entry and exit depending on the competitive performance of the firms. |
| Keywords: | Patents, industrial dynamics, evolutionary economics, agent-based modelling |
| JEL: | B52 L11 O34 |
| Date: | 2013 |
| URL: | http://d.repec.org/n?u=RePEc:dgr:unumer:2013020&r=tid |
| By: | Jérôme Danguy; Gaétan de Rassenfosse; Bruno Van Pottelsberghe |
| Abstract: | This paper decomposes the R&D-patent relationship at the industry level to shed light on thesources of the worldwide surge in patent applications. The empirical analysis is based on aunique dataset that includes 5 patent indicators computed for 18 industries in 19 countriescovering the period from 1987 to 2005. The analysis shows that variations in patentapplications reflect not only variations in research productivity but also variations in theappropriability and filing strategies adopted by firms. The results also suggest that the patentexplosion observed in several patent offices can be attributed to the greater globalization ofintellectual property rights rather than to a surge in research productivity. |
| Keywords: | appropriability; complexity; patent explosion; propensity to patent; research productivity; strategic patenting |
| JEL: | O30 O34 O38 |
| Date: | 2013–04 |
| URL: | http://d.repec.org/n?u=RePEc:eca:wpaper:2013/143016&r=tid |
| By: | Cevikarslan, Salih (UNU-MERIT, and SBE, Maastricht University) |
| Abstract: | The aims of this paper are twofold. The first is to analyse the interaction between research and development (R&D) activities of firms and heterogeneous consumer preferences in structuring the evolution of an industry. The second is to explore the heterogeneity in firms' innovation strategies. Is heterogeneity sustainable in the long-term and what happens to the market shares of firms having different innovation strategies when a structural market characteristic (market size) or a behavioural rule (R&D intensity) is changed? To answer these research questions, an evolutionary, multi-agent based, sector-level innovation model is designed. The model addresses supply and demand sides of the market simultaneously with the co-evolution of heterogeneous consumer preferences, heterogeneous firm knowledge bases, and technology levels at the micro level. |
| Keywords: | Heterogeneity, innovation strategies, evolutionary economics, agent-based modelling |
| JEL: | B52 L11 O33 |
| Date: | 2013 |
| URL: | http://d.repec.org/n?u=RePEc:dgr:unumer:2013019&r=tid |
| By: | Nicolas Figueroa; Carlos J. Serrano |
| Abstract: | This article presents the results of an analysis of the patent trading flows of small and large firms and the determinants of these firm's patent sale and acquisition decisions. We also examine whether these transactions lead to an excessive concentration of patent rights. We show that small firms disproportionately sell and acquire more patents than large firms, and find no evidence that patent trading brings about a significant concentration of patent rights in the hands of large firms. We find that the match between new patented innovations and the original inventor's patent portfolio plays an important role in how successful firms are at generating value from their patents, and in the decision to sell a patent. And among the traded patents, we show that patent acquisitions respond to complementarities between the acquired patented innovation and the buyer's technological capabilities to adopt it. Our empirical analysis uses a new, comprehensive data set that matches information on patent trades and the identity of patent owners over a patent's lifetime. |
| JEL: | L22 L24 O32 O34 |
| Date: | 2013–04 |
| URL: | http://d.repec.org/n?u=RePEc:nbr:nberwo:18982&r=tid |