Social networks and labor productivity in Europe: An empirical investigation

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Journal Article
Journal of Economic Interaction and Coordination, 2008, 3 (1), pp. 43 - 57
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This paper uses firm-level data recorded in the Amadeus database to investigate the distribution of labour productivity in different European countries. We find that the upper tail of the empirical productivity distributions follows a decaying power-law, whose exponent ? is obtained by a semi-parametric estimation technique recently developed by Clementi et al. [Physica A 370(1):4953, 2006]. The emergence of fat tails in productivity distribution has already been detected in Di Matteo et al. [Eur Phys J B 47(3):459466, 2005] and explained by means of a model of social network. Here we show that this model is tested on a broader sample of countries having different patterns of social network structure. These different social attitudes, measured using a social capital indicator, reflect in the power-law exponent estimates, verifying in this way the existence of linkages among firms productivity performance and social network.
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