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.

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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
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