There's nothing in Keynesian economics that would allow you to solve stagflation. But there's nothing in neoclassical economics that would allow you to solve stagflation, either.
Interpretation
The quote highlights the limitations of both Keynesian and neoclassical economics in addressing stagflation.
In this quote, Paul Samuelson emphasizes the challenges posed by stagflation, a situation characterized by stagnant economic growth and high inflation. He asserts that neither Keynesian economics, which focuses on total spending in the economy and its effects on output and inflation, nor neoclassical economics, which emphasizes free markets and the importance of supply and demand, provide effective solutions to this complex issue, indicating a significant gap in economic theories when faced with such phenomena.
In practice
In a lecture about economic theory, one could use this quote to illustrate the limitations of different economic frameworks.
To a person of analytical ability, perceptive enough to realise that mathematical equipment was a powerful sword in economics, the world of economics was his or her oyster in 1935. The terrain was strewn with beautiful theorems begging to be picked up and arranged in unified order.
I can't think of a president who has been overburdened by a knowledge of economics.
My belief is that nothing that can be expressed by mathematics cannot be expressed by careful use of literary words.
Politicians like to tell people what they want to hear - and what they want to hear is what won't happen.
My family was well off but not rich. I spent the four years I was an undergraduate working on the beach. And it wasn't because I was lazy; it was because my freshman class would go to a hundred different employers and wouldn't get a nibble. That was a disequilibrium system. I realized that the ordinary old-fashioned Euclidean geometry didn't apply.
Economics has never been a science - and it is even less now than a few years ago.
If you don't talk about families, then it's easy to disembody subprime mortgages and asset securitization and unemployment rates without remembering that every one of those numbers is a million families.
The trouble with the profit system has always been that it was highly unprofitable to most people.
Building new roads and bridges creates jobs. Growing our exports creates jobs. Reforming our outdated tax system and our broken immigration system creates jobs.
Without calculation, economic activity is impossible. Since under Socialism economic calculation is impossible, under Socialism there can be no economic activity in our sense of the word All economic change, therefore, would involve operations the value of which could neither be predicted beforehand nor ascertained after they had taken place. Everything would be a leap in the dark. Socialism is the renunciation of rational economy.
Money is not an invention of the state. It is not the product of a legislative act.
As the prosperity of the nation and the height of wage rates depend on a continual increase in the capital invested in its plants, mines and farms, it is one of the foremost tasks of good government to remove all obstacles that hinder the accumulation and investment of new capital.
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