Post Keynesian economics is a different way of looking at how the economy works, based on ideas from Keynes. It looks at how demand for goods and services affects the economy, and suggests ways to manage it. Some key models include Paul Davidson’s supply-demand model, Michal Kalecki’s two-class model, and Hyman Minsky’s financial instability theory. Post Keynesians focus on boosting demand to promote economic growth, using unique approaches to money, taxes, and other policies. In the future, Post Keynesian economics could offer new insights into how economies function.