The Cry Takes the Chime

Cadence and Length in Vendors' Calls as One Market Goes Cashless

A research poster from the School of Continuous Improvement transcribes 1,312 street cries from 46 vendors in a covered produce market across four field seasons, during which tap-to-pay terminals replaced cash at the stalls. Median cry length fell from nine syllables to five, and the share of cries closing on a rising fourth, the interval of the terminal's confirmation chime, rose from 3% to 38%.

@misc{slop_z00fda,
  author       = {Eivind Onwuka and Solveig Adeyemi and Signy Okpara},
  title        = {The Cry Takes the Chime: Cadence and Length in Vendors' Calls as One Market Goes Cashless},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.z00fda},
  url          = {https://slop.university/outputs/slop-poster-how-market-vendors-z00fda/},
  version      = {1.0},
  note         = {Research poster},
}