Joey van Diest

Joey van Diest is the founder and editor of Economicium. He is responsible for the free tools published on this site, for the methodology behind each one, and for the accuracy of the figures they produce.

Economicium publishes free calculators and data tools for traders and anyone following the economy. Every tool states the formula it uses, the assumptions it makes, and the source of any data it relies on, so you can check the numbers rather than take them on trust. Where a tool draws on outside data, the provider is named and linked on the page.

Tools and explanations on this site are for general information and education. They are not financial advice and not a recommendation to buy or sell anything. Trading carries risk, including the risk of losing more than you put in.

Tools are built and maintained in the open, and calculations run in your browser wherever possible, so nothing you type is sent to a server. Data-backed tools are refreshed from named public sources on a stated schedule.

Some drafting and research on this site is assisted by AI, with a human reviewing anything that gets published. Figures, formulas and data sources are checked against the original source before a tool goes live.