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on Technology and Industrial Dynamics |
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Issue of 2014‒06‒28
six papers chosen by Fulvio Castellacci Norwegian Institute of International Affairs (NUPI) |
| By: | Takayuki Mizuno (National Institute of Informatics, Graduate School of Economics, University of Tokyo, The Canon Institute for Global Studies); Wataru Souma (College of Science and Technology, Nihon University); Tsutomu Watanabe (Graduate School of Economics, University of Tokyo, The Canon Institute for Global Studies) |
| Abstract: | In this paper, we investigate the structure and evolution of customer-supplier networks in Japan using a unique dataset that contains information on customer and supplier linkages for more than 500,000 incorporated non-financial firms for the five years from 2008 to 2012. We find, first, that the number of customer links is unequal across firms; the customer link distribution has a power-law tail with an exponent of unity (i.e., it follows Zipf’s law). We interpret this as implying that competition among firms to acquire new customers yields winners with a large number of customers, as well as losers with fewer customers. We also show that the shortest path length for any pair of firms is, on average, 4.3 links. Second, we find that link switching is relatively rare. Our estimates indicate that the survival rate per year for customer links is 92 percent and for supplier links 93 percent. Third and finally, we find that firm growth rates tend to be more highly correlated the closer two firms are to each other in a customer-supplier network (i.e., the smaller is the shortest path length for the two firms). This suggests that a non-negligible portion of fluctuations in firm growth stems from the propagation of microeconomic shocks – shocks affecting only a particular firm – through customer-supplier chains. |
| Keywords: | buyer-supplier networks; supply chains; input-output analysis; power-law distributions; firm dynamics |
| JEL: | L11 L14 C67 |
| Date: | 2014–01 |
| URL: | http://d.repec.org/n?u=RePEc:upd:utppwp:019&r=tid |
| By: | Lynne G. Zucker; Michael R. Darby |
| Abstract: | Research on intellectual property has focused on formal legally recorded rights that we call deeded, most often measured by granted patents. Meanwhile, other “defacto” IP (mainly purposive secrecy and natural excludability) has become more important because of the increasing closeness of commercial technologies to cutting edge science. A “corporate-academic” model has developed and become institutionalized over the last three decades which emphasizes attracting the best and brightest scientists, providing them with a commensurate increase in autonomy including initiation of bench-level collaborations with top university scientists in which valuable tacit knowledge is transferred in both directions. We provide suggestive evidence that both firm and university scientists learn from these collaborations, e.g., both types of scientists experience sharply higher patenting rates once they have engage in university-firm collaborations. We propose and test two indicators of adoption of the corporate-academic model, whether or not the firm has ever: (a) co-authored an article with a university scientist and (b) applied for (an eventually granted) patent with non-patent references, where these references are used importantly to cite scientific articles and other scientific materials. Both were robustly positive and statistically significant across four measures of U.S. high-tech firm success (publishing, patenting, obtaining venture capital, and going public) for six broad S&T areas (bio/chem/med, information technology, nanotechnology, semiconductors, other science, and other engineering). Star scientists publication as or with firm employees, SBIR grants received, and citation-weighted patents and articles all played comparatively supporting roles in the empirical estimates. We concluded that the most successful high-tech firms have adopted a strategy of operating near the edge of the scientific envelope where high levels of tacit knowledge provide substantial natural excludability reducing or preventing entry of imitators. |
| JEL: | J44 L25 L63 L64 L65 M13 O31 O32 O33 O34 |
| Date: | 2014–06 |
| URL: | http://d.repec.org/n?u=RePEc:nbr:nberwo:20249&r=tid |
| By: | Oscar M. Valencia |
| Abstract: | R&D intensity for small firms is high and persistent over time. At the same time, small firms are often financially constrained. This paper proposes a theoretical model that explains the coexistence of these two stylized facts. It is shown that self-financed R&D investment can distort the effort allocated to different projects in a firm. In a dynamic environment, it is optimal for the firm to invest in R&D projects despite the borrowing constraints. In addition, this paper shows that beyond a certain threshold, effort substitution between R&D and production appears. When transfers from investor to entrepreneur are large enough, R&D intensity decreases with respect to financial resources. Conditional on survival, the more innovative and financially constrained firms are, faster they grow and exhibit higher volatility. Classification JEL: O41, 031, D86 |
| Date: | 2014–06 |
| URL: | http://d.repec.org/n?u=RePEc:bdr:borrec:828&r=tid |
| By: | Jens Horbach (University of Applied Sciences, Augsburg.) |
| Abstract: | Eco-innovations lead to less environmental impacts or to a reduction of energy use and are therefore crucial for climate protection. Recently, the determinants of eco-innovation activities have been widely explored for single countries but there is still a lack of country comparisons mainly because of data restrictions. In 2009, a special module on eco-innovation has been included in the Community Innovation Survey (CIS) allowing a comparison of the determinants of eco-innovation in 19 different European countries. Our analysis especially focuses on Eastern European transformation countries because the determinants of eco- innovation in these countries have not yet been systematically analyzed. Concerning the introduction of eco-innovation, the econometric analysis shows that regulation activities seem to be more important for Eastern European countries. This is especially the case for 'traditional fields'such as air, noise, soil, water, recycling or dangerous substances. Except energy saving measures, environmentally related subsidies seem to be quantitatively more important for the Eastern European countries pointing to the lower financial performance of the respective firms. Furthermore, Eastern European countries are more relying on competitors and external R&D as information sources indicating a technology transfer from West to East. |
| Keywords: | eco-innovation, probit models, country analysis. |
| JEL: | Q55 O33 C25 |
| Date: | 2014–04 |
| URL: | http://d.repec.org/n?u=RePEc:srt:wpaper:0714&r=tid |
| By: | Giovanni Marin (CERIS-CNR, National Research Council of Italy, Milan.); Alberto Marzucchi (CERIS-CNR, National Research Council of Italy, Milan.); Roberto Zoboli (CERIS-CNR, National Research Council of Italy, Milan.) |
| Abstract: | Eco-innovation is an explicit aim of major EU policy strategies. Many environmental policies de facto require firms to eco-innovate to comply with policy requirements, while the overlap between policy-driven and market-driven eco-innovation strategies is increasingly important for many firms. Barriers to eco-innovation can then emerge as a critical factor in either preventing or stimulating EU strategies, policy implementation, and 'green strategies' by firms. In this paper, we propose a taxonomy of EU SMEs in terms of barriers to eco-innovation. The aim is to discriminate among SMEs on how they differ in terms of perception of barriers and engagement in environmental innovation, thus highlighting the need to look at eco-innovation barriers in relation to firms' attitudes, technological and organizational capabilities, and strategies. We identify six clusters of SMEs. These clusters include firms facing 'Revealed barriers', 'Deterring barriers', 'Cost deterred' firms, 'Market deterred' firms, 'Non eco-innovators' and 'Green champions'. The clusters show substantial differences in terms of eco-innovation adoption. We show that our proposed taxonomy has little overlap with sector classifications. This diversity should be taken into account for successful environmental innovation policies. |
| Keywords: | eco-innovation, barriers to innovation, firm behaviour. |
| JEL: | O33 Q55 |
| Date: | 2014–04 |
| URL: | http://d.repec.org/n?u=RePEc:srt:wpaper:0614&r=tid |
| By: | Claudia Ghisetti (Dipartimento di Economia e Management, Università di Ferrara and SEEDS - Sustainability Environmental Economics and Dynamic Studies.); Francesco Quatraro (GREDEG-CNRS University of Nice-Sophia Antipolis (France) and BRICK, Collegio Carlo Alberto (Torino).) |
| Abstract: | This paper provides empirical investigation of the effects of environmental innovations (EIs) on environmental performances, as proxied by the environmental productivity (EP) measure. We focused on sectoral environmental productivity of Italian Regions by exploiting the Regional Accounting Matrix including Environmental Accounts(Regional NAMEA). Patent applications have been extracted by the Patstat Database and assigned to the environmental domain by adopting three international classifications of green technologies: the WIPO IPC green inventory, the European Patent Office climate change mitigation technologies classification (Y02) and the OECD ENV-Tech indicators. Econometric results outline that regions-sectors characterized by higher levels of green technologies (GTs) are actually those facing better environmental performance. These positive effects directly stem from the introduction of GT in the same sector, as well as from the introduction of GT in vertically related sectors. |
| Keywords: | environmental performance, regional NAMEA, environmental innovation, green technologies, vertical relatedness. |
| JEL: | O33 Q53 Q55 Q56 R11 |
| Date: | 2014–05 |
| URL: | http://d.repec.org/n?u=RePEc:srt:wpaper:1014&r=tid |