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# JPB - on LinkedIn


## [Why do prices move? Whereas Fama argues that markets are efficient and prices faithfully reflect fundamental values, Shiller insists on the role of behavioural biases as a source of excess volatility and price anomalies](https://www.linkedin.com/posts/jean-philippe-bouchaud-bb08a15_why-do-markets-crash-bitcoin-data-offers-activity-6922158164142419968-lXRx?utm_source=linkedin_share&utm_medium=member_desktop_web)

https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0139356&type=printable


# Parents

* JP Bouchaud