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Sailing in all winds: technological search over the business cycle
Business cycles modify firms’ incentives to innovate and the direction of innovation. By introducing a new measure of patent unconventionality this paper explores the impact of the business cycle on firms’ technological search strategies. We find that during upturns firms generate inventions...
Random walks on the world input-output network
Modern production is increasingly fragmented across countries.To disentangle theworld production system at sector level, we use the World Input-Output Database to construct the World Input-Output Network (WION) where the nodes are the individual sectors in different countries and the edges are&#x...
Community evolution in patent networks: technological change and network dynamics
When studying patent data as a way to understand innovation and technological change, the conventional indicators might fall short, and categorizing technologies based on the existing classification systems used by patent authorities could cause inaccuracy and misclassification, as shown in liter...
Networks of reinforced stochastic processes: asymptotics for the empirical means
This work deals with systems of interacting reinforced stochastic processes, where each process X j = (X n,j ) n is located at a vertex j of a finite weighted direct graph, and it can be interpreted as the sequence of “actions” adopted by an agent j of the&...
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