This site established by Ray Dalio attempts to educate readers about the nature of domestic and global economies. The flagship media piece on the site is a 30-minute explication of how Dalio understands the economy, using a simple machine metaphor to explain the basic driving forces of the economy, to analyze what leads to ups and downs in the economy, and to define such basic concepts as credit, interest rates, leveraging, and deleveraging (USA 2015).