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Project Citation: 

Ganapati, Sharat. Data and Code for: Growing Oligopolies, Prices, Output, and Productivity. Nashville, TN: American Economic Association [publisher], 2021. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2021-07-20.

Project Description

Summary:  View help for Summary

American industries have grown more concentrated over the last forty years. In the absence of productivity innovation, this should lead to price hikes and output reductions, decreasing consumer welfare. With US Census data from 1972-2012, I use price data to disentangle revenue from output. Industry-level estimates show that concentration increases are positively correlated to productivity and real output growth, uncorrelated with price changes and overall payroll, and negatively correlated with labor's revenue share. I rationalize these results in a simple model of competition. Productive industries (with growing oligopolists) expand real output and hold down prices, raising consumer welfare, while maintaining or reducing their workforces, lowering labor's share of output.

Scope of Project

Subject Terms:  View help for Subject Terms Market power; Oligopoly; Monopoly
JEL Classification:  View help for JEL Classification
      D43 Market Structure, Pricing, and Design: Oligopoly and Other Forms of Market Imperfection
      L13 Oligopoly and Other Imperfect Markets
      L22 Firm Organization and Market Structure
Geographic Coverage:  View help for Geographic Coverage United States
Time Period(s):  View help for Time Period(s) 1972 – 2012
Collection Date(s):  View help for Collection Date(s) 2016 – 2018
Universe:  View help for Universe US Firms with SIC/NAICS Industry codes
Data Type(s):  View help for Data Type(s) administrative records data; aggregate data; census/enumeration data


Data Source:  View help for Data Source
Various sources: including
US Census Bureau
US Bureau of Labor Statistics
US Bureau of Economic Analysis
US Department of Commerce

See readme file for full descriptions
Unit(s) of Observation:  View help for Unit(s) of Observation Industry (SIC/NAICS) basis
Geographic Unit:  View help for Geographic Unit USA

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