On the persistence of science-fiction economics
from Lars Syll
Obscurantism is sustained by the self-interest of non-obscurantist scholars. To be effective, an attack on obscurantism has to be well documented and well argued. Mere diatribes are pointless and sometimes counterproductive. Yet scholars have a greater personal interest in achieving positive results than in exposing the flaws of others, not only because of the reward system of science, but also because achieving positive results is intrinsically more satisfying. On grounds of self-interest, therefore, many schoars will hesitate to take time off from their main work and hope that someone else will do the cleaning … The highly regarded economist Ariel Rubinstein has offered rare insider criticism of mainstream economics, commenting, for example, on a ‘as-if-rationality’ that “it ultimately became clear that the phrase ‘as if’ is a way to avoid taking responsibility for the strong assumptions upon which economic models are founded” …
When Joseph Stiglitz was asked at a private dinner party how economists can make repeated falsified claims without having their careers terminated, he reportedly answered: “I agree with you, but I don’t understand why you are so puzzled. What you should be assuming is that — as is done by most economists — economics is really a religion. So why should you be puzzled by the fact that they cling to and never give up their views despite frequent falsification?”
Confronted with the critique that they do not solve real problems, mainstream economists often react as Saint-Exupéry‘s Great Geographer, who, in response to the questions posed by The Little Prince, says that he is too occupied with his scientific work to be be able to say anything about reality. Confronting economic theory’s lack of relevance and ability to tackle real probems, one retreats into the wonderful world of economic models. One goes in to the shack of tools and stays there playing with the ‘toy-box’. While the economic problems in the world around us steadily increase, one is rather happily playing along with the latest toys in the mathematical toolbox.
Modern mainstream economics is sure very rigorous — but if it’s rigorously wrong, who cares?
Instead of making formal logical argumentation based on deductive-axiomatic models the message, we are better served by economists who more than anything else try to contribute to solving real problems.