di Giovanni, Julian; Levchenko, Andrei A. - In: Journal of International Economics 89 (2013) 2, pp. 283-296
Firm size follows Zipf's Law, a very fat-tailed distribution that implies a few large firms account for a disproportionate share of overall economic activity. This distribution of firm size is crucial for evaluating the welfare impact of economic policies such as barriers to entry or trade...