What is the difference between postKeynesian economics and neoKeynesian economics?

Introduction: The Keynesian Legacy

Hello everyone! In the realm of economics, the name John Maynard Keynes holds immense significance. His ideas, often referred to as the Keynesian framework, revolutionized economic thought in the 20th century. While Keynesian economics is a well-known term, it’s important to recognize that it gave rise to two distinct branches: Post-Keynesian economics and Neo-Keynesian economics. Today, we’ll embark on a journey to understand the differences between these two schools of thought and their relevance in contemporary economic discourse.

The Core Tenets of Post-Keynesian Economics

Post-Keynesian economics, as the name suggests, emerged after the initial Keynesian wave. It can be seen as a continuation and extension of Keynes’ ideas. One of the fundamental tenets of Post-Keynesian economics is the rejection of the assumption of full employment in the economy. Unlike the Neo-Keynesians, who believe that the economy tends to equilibrium with full employment in the long run, Post-Keynesians argue that involuntary unemployment can persist in the system. They emphasize the role of effective demand, which is the total spending in the economy, in determining employment levels. Additionally, Post-Keynesians stress the importance of institutions, power relations, and social factors in shaping economic outcomes, going beyond the traditional focus on market forces.

Neo-Keynesian Economics: A Synthesis Approach

Neo-Keynesian economics, on the other hand, can be seen as a synthesis of Keynesian ideas with certain elements of classical economics. While they accept the notion of market imperfections and the need for government intervention, Neo-Keynesians place greater emphasis on the role of price and wage rigidities in causing economic fluctuations. They argue that these rigidities can lead to situations where the economy remains stuck in a state of disequilibrium, with unemployment persisting even in the presence of excess demand. To address this, they propose policies such as monetary and fiscal stimulus, aimed at overcoming these rigidities and restoring equilibrium. In essence, Neo-Keynesians seek to strike a balance between market forces and government intervention, acknowledging the limitations of both.

Policy Implications: Divergent Approaches

The differences between Post-Keynesian and Neo-Keynesian economics also manifest in their policy prescriptions. Post-Keynesians advocate for more radical policy measures, such as direct job creation by the government and income redistribution, to tackle issues like unemployment and inequality. They argue that these measures not only address immediate economic concerns but also have broader social benefits. On the other hand, Neo-Keynesians often favor more conventional policy tools, such as interest rate adjustments and targeted government spending, to stabilize the economy. They believe that these measures, when implemented judiciously, can help achieve the dual objectives of price stability and full employment.

Contemporary Relevance: Insights for Today’s Challenges

Both Post-Keynesian and Neo-Keynesian economics continue to be influential in contemporary economic debates. The Post-Keynesian emphasis on demand-led growth and the role of institutions has gained renewed attention in the context of issues like income inequality and financial instability. Similarly, the Neo-Keynesian focus on market imperfections and the need for countercyclical policies remains relevant in the face of economic downturns. However, it’s worth noting that these schools of thought are not without their criticisms. Some argue that Post-Keynesian economics lacks formal rigor, while others question the efficacy of Neo-Keynesian policies in certain situations. These debates, though, are a testament to the dynamism and ongoing evolution of economic thought.