The Impact of Broadband Diffusion on the Economic Performance of Micro-firms in Trentino

This research project analyzes the impact of broadband accessibility on micro-firm productivity. We exploit a unique policy intervention of a staged broadband infrastructure installation across rural municipalities in the Province of Trento (Italy), generating a source of exogenous (spatial and temporal) variation in high-speed internet accessibility. We describe the policy and its features in detail and discuss the plausibility of the assumption of quasi-exogenous roll-out timing across municipalities. In particular, we examine a broad range of municipality- as well as firm-level characteristics and find that the data are consistent with such assumption. Finally, we provide a reduced-form analysis mainly based on firm-level survey data from the Panel of Microenterprises in the Province of Trento (PMT) in combination with administrative data on firm performance. Estimates of an intention-to-treat effect suggest that the impact has been positive for firms with relatively high-educated entrepreneurs and insignificant for others. For the former, one additional month of exposure to broadband infrastructure is associated with a 4.7-percent increase in annual sales volume between 2010 and 2012; 15 months of exposure are associated with a 19-percent increase. This result is robust in specifications accounting for firm heterogeneity.

Press coverage:

ItaliaOggi, 17/10/2014

Corriere del Trentino, 17/10/2014

l’Adige, 17/10/2014

Milano Finanza, 16/10/2014

Agenda 18/11/2014



  • Giulia Canzian
  • Samuele Poy
  • Simone Schüller


Publication number: Progress Report 2014-02
Date: 10/2014
JEL Classification: O33; J24; L24; L26
  • Broadband internet,
  • Firm productivity,
  • Micro-firms,
  • Technological change,
  • Skill-bias
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