I know this is open ended but what do Karl Marx, Adam Smith, Shumpeter, and Keynes have in common in terms of thinking. I am studying them right now and my prof. says that they are the grandmasters of political economy. I understand their role with capitalism and how after smith, they thought capitalism would fall and turn into socialism or communism. Do you know any modern examples of their theories in the works. thanks

First off, neither Shumpeter or Keynes thought capitalism would "fall". Although, as I recall, both wrote about problems with capitalism.
That said, all of these "grandmasters" have produced ideas that are still accepted and taught and used today. "Tax Cuts to stimulate the economy" is a page right out of Keynes. Advantages from specialization and trade is something Smith taught over 200 years ago. Today's concepts of inovation and entrepreneurs can be traced by to Shumpeter. Modern ideas of social class have roots in the writings of Karl Marx.

You're correct in recognizing Karl Marx, Adam Smith, Joseph Schumpeter, and John Maynard Keynes as influential figures in the field of political economy. While their perspectives on capitalism and its future may vary, these thinkers have made significant contributions to economic thought.

Let's explore their ideas and commonalities:

1. Karl Marx: Marx is known for his critical analysis of capitalism and his advocacy for communism. He argued that capitalism creates social inequality, exploits labor, and breeds class struggles. Marx believed that these inherent contradictions within capitalism would eventually lead to its downfall. He emphasized the importance of class consciousness and the need for a proletarian revolution.

2. Adam Smith: Smith, often regarded as the father of modern economics, laid the foundation for classical economics. His seminal work, "The Wealth of Nations," advocated for free markets, division of labor, and the invisible hand theory. Smith believed that, through self-interest and competition, the market could lead to overall economic prosperity.

3. Joseph Schumpeter: Schumpeter focused on the role of entrepreneurship and innovation in economic development. He coined the term "creative destruction," referring to the process where new innovations disrupt existing industries, leading to progress and growth. Schumpeter also explored the importance of business cycles and the dynamic nature of capitalism.

4. John Maynard Keynes: Keynes is best known for his ideas on macroeconomics. During the Great Depression, he argued that government intervention, such as fiscal policy (e.g., increased government spending to stimulate demand), could help overcome economic downturns. Keynes emphasized the importance of aggregate demand and the role of government in managing economic fluctuations.

While their theories differ, there are some common threads among these grandmasters of political economy. All four thinkers have had a lasting impact on economic discourse and policy-making. Here are a few modern examples of their theories in practice:

1. Keynesian economics: Following the 2008 financial crisis, many countries implemented stimulus packages involving increased government spending to stimulate demand and revive the economy. This approach aligns with Keynesian principles.

2. Smithian economics: The concept of the invisible hand and the benefits of specialization and trade continue to influence global trade policies and arguments for free markets in many economies.

3. Schumpeterian economics: The study of entrepreneurship and innovation has gained increased attention in recent years, as societies recognize the importance of fostering creativity and supporting startups and new ventures.

4. Marxist analysis: Although communism is not widely practiced today, many scholars still draw upon Marxist concepts to analyze issues of social inequality, class struggle, and exploitation.

These are just a few examples, and each economist's theories have been debated, revised, and adapted over time. Studying their works can provide valuable insights into the evolution of economic thought and its impact on contemporary policies and perspectives.