An Event-Study of Flat-White Price Adjustment at One Office-Precinct Coffee Cart
A research poster from the School of Continuous Improvement runs an event-study of forty-two bean-cost changes at a single office-precinct coffee cart, timing how long each drink's price takes to move after a supplier cost rise against a supplier cost cut. Adjustment lags roughly tenfold, holding across every drink on the board.
| Authors | Osei Vandermeer, Marit Osayande |
|---|---|
| School | School of Continuous Improvement |
| Output type | Research poster |
| Published | |
| DOI | 10.5555/slop.zis8a9 |
| Pages | 1 |
| Version | 1.0 |
| Licence | CC BY 4.0 |
Cites
Cite as
@misc{slop_zis8a9,
author = {Osei Vandermeer and Marit Osayande},
title = {Sticky on the Way Down: An Event-Study of Flat-White Price Adjustment at One Office-Precinct Coffee Cart},
year = {2026},
publisher = {Slop University},
doi = {10.5555/slop.zis8a9},
url = {https://slop.university/outputs/slop-poster-an-event-study-of-zis8a9/},
version = {1.0},
note = {Research poster},
}