The article explores the origins and development of post-Keynesian economic ideas through various perspectives. It discusses the influence of key figures like Sraffa and Keynes, as well as concepts such as equilibrium, money, and growth. The researchers analyze different theories on money, credit, pricing, and economic development, highlighting the importance of aggregate demand in less-developed economies. Overall, the article aims to provide a comprehensive overview of post-Keynesian economics and its relevance in understanding modern economic issues.