scholarly journals Knowledge Spillovers and Local Industry Growth: A Patent Citation Approach

2018 ◽  
Vol 64 (1) ◽  
pp. 60-72
Author(s):  
Kejun Song ◽  
Gerald Simons ◽  
Wei Sun

We create unique patent-based measures of Marshall–Arrow–Romer (MAR) and Jacobs knowledge spillovers using patent citations data and use them to test the Glaeser et al. model of local industry employment growth on three emerging technology categories, namely, computing and communications, drugs and medical, and electrics and electronics. We test growth in 45 U.S. metropolitan statistical areas (MSAs) and consolidated metropolitan statistical areas (CMSAs) for eight two-digit industries over the period 1994 to 2000. We find strong evidence for MAR spillovers from specialization, but little for Jacobs spillovers from diversity. Our results suggest that regional specialization, but not diversity, boosts local industry employment growth in these knowledge fields. JEL classifications: J21, L16

2016 ◽  
Vol 20 (02) ◽  
pp. 1650028 ◽  
Author(s):  
LUIGI ALDIERI ◽  
CONCETTO PAOLO VINCI

The aim of this paper is to analyse the pattern of knowledge flows as evidenced by the patent citations in three economic areas: USA, Japan and Europe. In each economic area, we exploit information from two international patent offices data, the United States Patent and Trademarks Office (USPTO) data and the European Patent Office (EPO) data. In this way, we can investigate the link between the technological proximity and knowledge spillovers for 240 international firms. In particular, the contribution to the existing literature is twofold: First, we use an international sample so that we can compare the empirical results among different economic markets; second, we explore the robustness of results with respect to patent system features. In order to compute the technological proximity, we consider both the symmetrical measure and asymmetrical one. The empirical results indicate that there is a statistically significant correlation between technological proximity and knowledge spillovers measured by patent citations and that these results are robust with respect to patent office data used in the analysis.


Author(s):  
Daniel Crown ◽  
Timothy Wojan ◽  
Anil Rupasingha

Abstract This article estimates the employment spillover effect of high-growth businesses on establishment-level employment growth. We assess whether the impact depends on the rurality of the region, and whether nearby establishments are high-growth businesses themselves. We also estimate the within-industry impact of high-growth establishments (HGEs). The findings show no impact of HGEs on net employment growth, due to equal gross job creation and job destruction on average. However, we find that within the same industry, HGEs contribute to positive net employment growth, with large and nearly equal impacts on existing HGEs across both Metropolitan Statistical Areas regions and non-metro counties.


1998 ◽  
Vol 02 (04) ◽  
pp. 469-478
Author(s):  
G. Steven Mcmillan

Previous research has explored the value of using patent citations, versus simple patent counts, as indicators of innovative value. However, little work has delved into whether a company's patent citations are to its own patents or to external ones. This study examines the relationship between publishing and patenting using patent citation analysis that is separated into internal and external cites, with self-citations as a measure of internal knowledge development. Its results are that publishing patterns and internal knowledge development are correlated, which may provide a different view of Cohen and Levinthal's absorptive capacity model. In addition, these findings' plausibility was confirmed through an interview with a practising research manager.


2000 ◽  
Vol 90 (2) ◽  
pp. 215-218 ◽  
Author(s):  
Adam B Jaffe ◽  
Manuel Trajtenberg ◽  
Michael S Fogarty

2017 ◽  
Vol 63 (2) ◽  
pp. 166-186 ◽  
Author(s):  
Onyumbe E. Lukongo ◽  
Thomas Miller

The article provides the empirical framework and steps toward the evaluation of the spatial consequence of the 17% interest rate ceiling in Arkansas using a new database from the trade association for installment lenders, the American Financial Services Association. The specific contribution of this study is to build and apply the installment loan accessibility index within the context of the spatial regime models. Results suggest strong evidence of spatial clustering of counties with similar (low or high) installment loan usage rates across the study area and two spatial regimes at work. The loan accessibility index is a strong predictor of the installment loan usage in the study area. That is, an increase in the loan acquisition costs due to the 17% interest rate cap puts interior counties’ residents at disadvantage compared with residents of border counties who can cross the borders to get small dollar loans. JEL Classifications: C51, C52, G23, G28


2013 ◽  
Vol 26 (2) ◽  
pp. 180-199 ◽  
Author(s):  
Joern Block ◽  
Danny Miller ◽  
Peter Jaskiewicz ◽  
Frank Spiegel

Prior research has analyzed R&D spending in family and founder firms. Yet little is known about the economic and technological importance of innovations in these types of firms. Using patent citation data, we show that founder-managed firms, which we argue favor an entrepreneurial orientation, receive more patent citations when compared with other firms, even controlling for R&D spending. By contrast, family-managed firms, many of which, we argue, pursue socioemotional wealth for the family, receive fewer patent citations compared with other firms, again, controlling for R&D spending. Patent citations have been shown in the literature to reflect the economic and technological importance of innovations.


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