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How the Stock Ticker Decreased Price Efficiency in the Early 20th Century

Barbara A. Bliss et al.

Critical Finance Review2025https://doi.org/10.1561/104.00000151article
AJG 1ABDC A*
Weight
0.41

Abstract

We study the stock ticker; a physical device that historically disseminated stock price information. We find that an increased number of ticker subscriptions in a state strengthened the return continuation and return co-movement of firms headquartered in the state. This finding indicates that the increased dissemination of price information decreased price efficiency by increasing uninformed trend chasing and challenges the assumption that greater access to information improves price efficiency.

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https://doi.org/https://doi.org/10.1561/104.00000151

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@article{barbara2025,
  title        = {{How the Stock Ticker Decreased Price Efficiency in the Early 20th Century}},
  author       = {Barbara A. Bliss et al.},
  journal      = {Critical Finance Review},
  year         = {2025},
  doi          = {https://doi.org/https://doi.org/10.1561/104.00000151},
}

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How the Stock Ticker Decreased Price Efficiency in the Early 20th Century

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Evidence weight

0.41

Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40

F · citation impact0.25 × 0.4 = 0.10
M · momentum0.55 × 0.15 = 0.08
V · venue signal0.50 × 0.05 = 0.03
R · text relevance †0.50 × 0.4 = 0.20

† Text relevance is estimated at 0.50 on the detail page — for your query’s actual relevance score, open this paper from a search result.