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What is wrong with modern economics?

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What is wrong with modern economics? It is simply that modern economists persist in insisting that a set of tools be everywhere adopted that are mostly inadequate to social analysis, given the nature of social phenomena … To put the matter bluntly (the pun may be useful), it is like attempting to cut the grass with a hammer or a piece of paper. The latter objects have their uses, but mowing the lawn is not one of them. Methods of applied mathematics of the sort economists wield have their uses, but illuminating social reality is not one of them, or at best, is so only in exceptional circumstances. I hope that it is clear that this explanation, whether correct or not, reflects a stance that is not anti-mathematics but anti a mismatch of tool and object —

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What is wrong with modern economics?

It is simply that modern economists persist in insisting that a set of tools be everywhere adopted that are mostly inadequate to social analysis, given the nature of social phenomena …

What is wrong with modern economics?To put the matter bluntly (the pun may be useful), it is like attempting to cut the grass with a hammer or a piece of paper. The latter objects have their uses, but mowing the lawn is not one of them. Methods of applied mathematics of the sort economists wield have their uses, but illuminating social reality is not one of them, or at best, is so only in exceptional circumstances. I hope that it is clear that this explanation, whether correct or not, reflects a stance that is not anti-mathematics but anti a mismatch of tool and object — and so, given the circumstances, anti the abuse of mathematics …

There is a good deal wrong with modern economics. There is much to be done to remedy matters at all levels of analysis. But little can improve at any level until we discard the widely-worn methodological blinkers which encourage the view that mathematical modelling is everywhere automatically relevant, even essential, so that paying explicit attention to matters of ontology is unnecessary.

Tony Lawson

Modern economics has become increasingly irrelevant to the understanding of the real world. In his seminal book Economics and Reality (1997), Tony Lawson traced this irrelevance to the failure of economists to match their deductive-axiomatic methods with their subject

What is wrong with modern economics? It is — sad to say — as relevant today as it was twenty five years ago.

It is still a fact that within mainstream economics internal validity is everything and external validity nothing. Why anyone should be interested in that kind of theories and models is beyond imagination. As long as mainstream economists do not come up with any export-licenses for their theories and models to the real world in which we live, they really should not be surprised if people say that this is not science, but autism!

Studying mathematics and logic is interesting and fun. It sharpens the mind. In pure mathematics and logic, we do not have to worry about external validity. But economics is not pure mathematics or logic. It’s about society. The real world.

Economics and Reality was a great inspiration to yours truly twenty five years ago. It still is.

Lars Pålsson Syll
Professor at Malmö University. Primary research interest - the philosophy, history and methodology of economics.

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