I find it interesting to consider academic expertise, in economics as in most other disciplines.
Academics study the past as a general rule, examining the thoughts of those considered to be seminal thinkers. By the time they do, they already have fixed ideas about any number of things. Since they study under the direction of a perceived expert, that person will inevitably color their thinking. If the professor rejects Marx, for example, chances are the student will too. A few professors are more interested in developing thinking skills, but not all.
The result seems clear to me.
How many modern academics are themselves seminal thinkers? Is it not more common that they study and perhaps contrast, compare, and at most combine? How many will depart from orthodoxy?
I take a different approach; I examine a number of thinkers from the past, but also those currently writing. I look at Joseph Stiglitz, Paul Krugman, and Ha Joon Chang, among others, and find interesting points in their work that seem pertinent to me.
But in the end I find my own approach, that a mixed economy is to be preferred over any single approach. All have some merit, if applied rigorously, but such application is never ‘pure’.
For example, the supposed benefits from competition vanish as soon as an economic organization grows large enough. International trade is supposed to be beneficial…but there’s no such thing as ‘free trade’, because trade is never between equals. Government intervention is supposed to be bad, but without it, the system cannot endure. And so it goes.
I don’t think an academic is prepared to step outside the bounds. His career, his life’s work, is tied up in his thinking.
I own to some of the same rigidity of thought, but for a different reason. I have a mature, maybe even overly mature, philosophy that encompasses not only economics but also politics, government, international relations, and much much more.
There are few new tricks for this old dog to learn…and no desire at all to roll over and play dead.