The Billion Prices Project is an academic initiative that uses prices collected from hundreds of online retailers around the world on a daily basis to conduct research in macro and international economics. It was founded in 2008 by Alberto Cavallo and Roberto Rigobon. This page shows our most recent research and links to related projects.
A paper by Alberto Cavallo of Harvard University found evidence that the algorithms used by internet-based retail giants like Amazon to constantly change and adjust prices have led to greater price fluctuations in response to various macroeconomic shocks. This so-called ‘Amazon Effect’ not only forces brick-and-mortar outlets to respond in a similar manner but also reduces the ability of the central bank to influence prices in the economy.