Our indexes are designed to provide real-time information on major inflation trends, not to forecast official inflation announcements. The official CPI series are shown for reference purposes only. You can hide/show each series by clicking on their legend icon.
For details on the methodology, click here.
The Billion Prices Project is an academic initiative that collects prices from hundreds of online retailers around the world on a daily basis to conduct economic research. We currently monitor daily price fluctuations of ~5 million items sold by ~300 online retailers in more than 70 countries.
The Billion Prices Project