Abstract
What determines the differences in economic performance across European regions? In addressing this question, this paper takes inspiration from two different approaches. One approach highlights the role of capability-building, of a technological or social nature, while another perspective emphasizes the potential advantages of proximity and, hence, a relatively diversified economic structure, for regional economic performance. The paper argues that the impacts of capability-building and diversification on regional economic development need to be assessed jointly. Using information for 261 regions at NUTS2 level in 27 European countries in the 2000s, novel data sources are exploited to construct measures of technological and social capabilities, which are combined with indicators of related and unrelated variety in the analysis of regional economic dynamics. The results suggest that capability-building play a key role in regional economic development while the results for diversification are more mixed.
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Notes
For an overview of the literature on social capital, see Portes 1998.
See Boschma (2005) for an overview and discussion of the role of proximity for innovation.
However, as pointed out by one of the referees to this paper, according to the economist John Sutton’s “bounds approach” to the study of technology and market structure (Sutton, 1998), low related variety may be expected to go together with high concentration in R&D-intensive industries, suggesting the possibility of high innovation and growth, i.e., counteracting the effect emphasized by Boschma (2005) and others.
Another hypothesis suggested by Frenken et al. (2007), and which was supported by their data, was that “related variety” would be positively correlated with increases in employment.
According to the number of patent applications to the European Patent Office (EPO) by priority year in Regional science and technology statistics from Eurostat (2020).
That is, in Cortinovis and van Oort (2015)’s sample, there is a sufficient number of employees in most regions to compute reliable indices.
If appropriate the indicators are adjusted by the size of the region (i.e. per capita or as % of GDP etc.).
Note that, due to data availability, observations sometimes are from different years. For example, the European Value Study was carried out in different years in different countries. However, this problem should not be exaggerated. In fact, for the indicators associated with the technological capability measure, all observations are from a very narrow time span (the years 2004–2006). The same holds for the indicators associated with social capability (the years 2008–2010) with the exception of one single indicator (which is from the years 2004–2006). See Table A.1 in the appendix to this paper for more details.
See also the correlation table in appendix (Table A4).
See Fagerberg et al. 2010 for a more detailed discussion. In addition, the regional CIS indicators are available at NUTS1 level only.
As shown by Barro and Sala-i-Martin (2003, pp. 274–275), the inclusion of the GDP per capita variable may be consistent both with Solow’s traditional neoclassical growth model (in which case the level of GDP per capita is assumed to reflect the capital intensity of the economy) and a Schumpeterian perspective (with a low GDP per capita indicating a high potential for diffusion).
This is a well-known problem in the empirical literature on economic growth, see, e.g., the discussion in Durlauf et al. (2005). One remedy that is often recommended is the use of instrumental variables, i.e., exogenous variables that do not belong to the model but that are nevertheless correlated with the (endogenous) explanatory factors, provided that such instruments can be found. However, scarcity of data, and the fact we have already exhausted most relevant data sources in our search for indicators, prevent us from pursuing this line of analysis here.
Cook’s distance with the conventional cut-off point at 4 / number of observations was used to exclude the outliers.
Hence, the estimated coefficients refer to the impact of changing an independent variable by one standard deviation.
A backward stepwise search for the best model specification was conducted using a criterion of 20% statistical significance level for exclusion and 10% statistical significance level for re-inclusion of a variable in the model.
Note that the impact of related variety for Eastern European regions (regression 3 in Table 4) is the sum of the general effect (common to all regions), which is positive, and the specific effect for Eastern regions, which is negative. Hence, these two effects tend to cancel each other, since the absolute value of the estimate is about the same in the two cases, with the result that the total effect becomes negligible.
The ten regions that according to the estimates (based on regression 3 in Table 4) receive the highest impetus to growth from related variety are Veneto, Lombardia and Emilia-Romagna in Northern Italy; Schwaben in Southern Germany; Cataluña, Comunidad Valenciana, Castilla-la Mancha and Aragón in Spain; and, finally, two Portuguese regions (Centro & Norte). Among the next ten, there are five more regions from Spain, two Southern German regions, and one Italian region, illustrating the strong geographical concentration of the phenomenon.
See, e.g., https://ec.europa.eu/info/strategy/priorities-2019-2024/european-green-deal_en, accessed on 07/06/2021.
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Acknowledgements
Martin Srholec gratefully acknowledges funding from the Czech Science Foundation (GAČR) project no 17-09265S and the Czech Academy of Sciences for the R&D&I Analytical Centre (RaDIAC). Jan Fagerberg would for his part like to acknowledge support from INTRANSIT, Centre for Technology, Innovation and Culture, University of Oslo (project number 295021). We thank Nicola Cortinovis and Frank van Oort (Cortinovis & van Oort, 2015) and Ernest Miguelez and Rosina Moreno (Miguelez & Moreno, 2018) for providing access to data on the indices of related and unrelated variety in European regions, and the editors and referees of this journal for helpful advice. All usual caveats apply.
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Appendix (data & sources)
Appendix (data & sources)
An overview of definitions and sources of the data is given in Table A1. Sample size and composition and reference periods were determined by the availability of data. For the indicators of technological and social capabilities we searched for data from the middle of the 2000s. However, due to lack of availability, some of the indicators are from the end of the decade. This holds particularly for indicators associated with social capability. Although the selected indicators have broad coverage, in some cases there were missing values that had to be estimated using the impute procedure in Stata/MP 15.1 (see the Stata 15.1 Manual for details). We based the estimation on data for the other indicators of technological and social capabilities used to construct the capability measures. The number of observations estimated by the procedure is given in the last column of Table A1.
All regions of the 27 countries located in the mainland Europe are included in the analysis (only small overseas and/or dependent territories, including Guadeloupe, Martinique, Guyane, Réunion, Ceuta, Melilla, Acores and Madeira, have been excluded). The regions refer to the second level of the division of the Nomenclature of Territorial Units for Statistics (NUTS2). Due to data limitations a combination of NUTS1 and NUTS2 regions was used in some cases. For instance, EVS (2016) data is at NUTS1 level in large countries that are divided in many regions (i.e. Germany, France, Italy, Spain and the United Kingdom), because the number of respondents was too small to derive reliable indicators at more detailed disaggregation. Due to changes in the NUTS2 classification some regions had to be merged using population as weight in averaging of the indicators (Brandenburg—Nordost (DE41) and Brandenburg—Südwest (DE42) merged in Brandenburg (DE40); Helsinki-Uusimaa (FI1B) and Etelä-Suomi (FI1C) merged in Etelä-Suomi (FI18); Inner London—West (UKI3) and Inner London—East (UKI4) merged in Inner London (UKI1) etc.). The full list of regions included in the analysis is given in Table A2.
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Fagerberg, J., Srholec, M. Capabilities, diversification & economic dynamics in European Regions. J Technol Transf 48, 623–644 (2023). https://doi.org/10.1007/s10961-022-09917-1
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DOI: https://doi.org/10.1007/s10961-022-09917-1