Where this phrase comes from ## A core lesson of economics Incentives matter appears in this channel's material as one of economist Tyler Cowen's two core lessons of economics. Asked to distill what economics really teaches, Cowen answers: 1. Incentives matter. 2. There's always an opportunity cost. In the same conversation, Cowen explores how ChatGPT fits into his daily work and travel — using it as an on-demand explainer while Perplexity handles references and Google handles links. When he names the core lessons of economics, incentives matter is the first of the pair — the idea that the rewards and penalties built into a situation shape what people actually do. Key takeaways - Incentives matter is one of Tyler Cowen's two core lessons of economics, alongside there's always an opportunity cost. - It names the principle that the rewards and penalties in a situation drive people's behavior. - Cowen shares it while exploring how ChatGPT is changing everyday work and productivity.