Introduction to Keynesian Economics Essay: Roosevelt and others, subscribed to a new economic theory known as Keynesian economics. This theory suggested that while private sector growth was essential to maintaining a healthy economy, public sector spending was necessary to stimulate and stabilize the economy when necessary. According to this theory, the government should spend more money during a recession, and save money by reducing taxes and cutting budgets during an economic expansion. In a minimum of 250 words, double-spaced paper share your opinion about Keynesian economics. Do you agree with the idea of this theory or not?