@techreport{smith2023nationalchains,
  title       = {National Chains and Trends in Retail Productivity Dispersion},
  author      = {Smith, Dominic and Blackwood, Jake and Giandrea, Michael and Grim, Cheryl and Stewart, Jay and Wolf, Zoltan},
  year        = {2023},
  institution = {U.S. Bureau of Labor Statistics},
  type        = {BLS Working Paper},
  number      = {ec230100},
  url         = {https://www.bls.gov/osmr/research-papers/2023/ec230100.htm}
}