The article discusses different perspectives on Keynesian economics and its relevance in today's world. It looks at various theories and models related to Keynesian economics, including how it can be applied to modern economic issues. The researchers explore topics such as investment volatility, income distribution, monetary policies, and behavioral finance from a Keynesian viewpoint. Overall, the article provides critical assessments of Keynesian economics after 70 years, highlighting its continued importance in understanding and addressing economic challenges.