# Visualizing information propagation in markets

DevFeed: [Visualizing information propagation in markets](<https://devfeed.tech/articles/visualizing-information-propagation-in-markets-20224.md>)

Original publisher: [Read original article](<https://blog.janestreet.com/visualizing-information-propagation-in-markets-index/>)

Author: Ricson Cheng

Published: 2022-11-23T00:00:00Z

Content type: article

Language: en

Sources: [Jane Street](<https://devfeed.tech/sources/jane-street.md>)

Topics: [Transactions](<https://devfeed.tech/topics/transactions.md>), [data](<https://devfeed.tech/topics/data.md>)

Tags: [data](<https://devfeed.tech/tags/data.md>), [forecasting](<https://devfeed.tech/tags/forecasting.md>), [future](<https://devfeed.tech/tags/future.md>), [hedge](<https://devfeed.tech/tags/hedge.md>), [index](<https://devfeed.tech/tags/index.md>), [information](<https://devfeed.tech/tags/information.md>), [transactions](<https://devfeed.tech/tags/transactions.md>), [uk](<https://devfeed.tech/tags/uk.md>), [visualization](<https://devfeed.tech/tags/visualization.md>)

## AI overview

The article uses the historical Dojima rice market and the story of Forecasting Yomiji to introduce how price information propagated through markets. It then presents a visualization of information transmission through fiber-optic cables using data from futures exchanges around the world, with equity index futures as an example.

## Source excerpt

The Dojima rice market, established around 1716, is widely considered to be the world's first organized futures exchange. Instead of directly exchanging money for rice on the spot, merchants would agree on a price and future date at which rice and money would be exchanged. This allowed farmers and consumers to hedge their risk. As a result, information about the abundance or lack of rice would travel across the country as fast as rice merchants carried it.