In standard economic theory, prices are simply expressions of information about the scarcity of (and demand for) goods. But in his new book “Price Wars: How the Commodities Markets Made Our Chaotic World,” writer and filmmaker Rupert Russell argues that the modern era of algorithm-driven speculation has normalized unpredictable price swings in commodity markets and turned prices into “engines of chaos.” Russell joins Ryan Grim to discuss.https://join.theintercept.com/donate/now See acast.com/privacy for privacy and opt-out information.