Custom software is distinct from other types of capital in that it is non-rival—once a firm makes an investment in custom software, it can be used simultaneously across its many establishments. Using confidential US Census data, we document that while firms with more establishments are more...

Why do export sales increasingly concentrate among a few "superstars"? This paper is the first to argue that the expansion of the Internet matters for this phenomenon. Using firm-level customs transaction data from 11 developing countries, we show that the spread of the internet steepens the...

Power law distributions are ubiquitous in socioeconomic contexts. While their general properties are well understood, it is often less clear why they regularly appear in empirical data. What are the generative mechanisms leading to power laws, how do they arise in the real world? This paper aims...

This Brief studies the establishment size distribution in the European Union countries. A well-established literature has established that an abundance of small establishments among lower-income countries is evidence of the misallocation of inputs. To investigate this phenomenon, this Brief...

Power law distributions are ubiquitous in socioeconomic contexts. While their general properties are well understood, it is often less clear why they regularly appear in empirical data. What are the generative mechanisms leading to power laws, how do they arise in the real world? This paper aims...