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intellectual overextension is often found in economics, as Gary Saul Morson and Morton Schapiro explain in their wonderful book “Cents and Sensibility: What Economics Can Learn from the Humanities” (Princeton). Morson and Schapiro—one a literary scholar and the other an economist—draw on the distinction between hedgehogs and foxes made by Isaiah Berlin in a famous essay from the nineteen-fifties, invoking an ancient Greek fragment: “The fox knows many things, but the hedgehog one big thing.” Economists tend to be hedgehogs, forever on the search for a single, unifying explanation of complex phenomena. They love to look at a huge, complicated mass of human behavior and reduce it to an equation: the supply-and-demand curves; the Phillips curve, which links unemployment and inflation; or mb=mc, which links a marginal benefit to a marginal cost—meaning that the fourth slice of pizza is worth less to you than the first. These are powerful tools, which can be taken too far. Morson and Schapiro cite the example of Gary Becker, the Nobel laureate in economics in 1992. Becker is a hero to many in the field, but, for all the originality of his thinking, to outsiders he can stand for intellectual overconfidence. He thought that “the economic approach is a comprehensive one that is applicable to all human behavior.” Not some, not most—all

Becker analyzed, in his own words, “fertility, education, the uses of time, crime, marriage, social interactions, and other ‘sociological,’ ‘legal,’ and ‘political problems,’ ” before concluding that economics explained everything

there is no moral dimension to this economic analysis: utility is a fundamentally amoral concept

“A traditional cost-benefit analysis could easily have led to the discontinuation of a project widely viewed as being among the most successful health interventions in African history.”

Economics, Morson and Schapiro say, has three systematic biases: it ignores the role of culture, it ignores the fact that “to understand people one must tell stories about them,” and it constantly touches on ethical questions beyond its ken. Culture, stories, and ethics are things that can’t be reduced to equations, and economics accordingly has difficulty with them

finance is full of “attribution errors,” in which people view their successes as deserved and their failures as bad luck. Desai notes that in business, law, or pedagogy we can gauge success only after months or years; in finance, you can be graded hour by hour, day by day, and by plainly quantifiable measures. What’s more, he says, “the ‘discipline of the market’ shrouds all of finance in a meritocratic haze.” And so people who succeed in finance “are susceptible to developing massively outsized egos and appetites.”

one of the things I liked about economics, finance, and the language of money was their lack of hypocrisy. Modern life is full of cant, of people saying things they don’t quite believe. The money guys, in private, don’t go in for cant. They’re more like Mafia bosses. I have to admit that part of me resonates to that coldness.

Another part of me, though, is done with it, with the imperialist ambitions of economics and its tendency to explain away differences, to ignore culture, to exalt reductionism. I want to believe Morson and Schapiro and Desai when they posit that the gap between economics and the humanities can be bridged, but my experience in both writing fiction and studying economics leads me to think that they’re wrong. The hedgehog doesn’t want to learn from the fox. The realist novel is a solemn enemy of equations. The project of reducing behavior to laws and the project of attending to human beings in all their complexity and specifics are diametrically opposed. Perhaps I’m only talking about myself, and this is merely an autobiographical reflection, rather than a general truth, but I think that if I committed any further to economics I would have to give up writing fiction. I told an economist I know about this, and he laughed. He said, “Sounds like you’re maximizing your utility.” 

There is something thrilling about the intellectual audacity of thinking that you can explain ninety per cent of behavior in a society with one mental tool

According to Hanson and Simler, these unschooled workers “won’t show up for work reliably on time, or they have problematic superstitions, or they prefer to get job instructions via indirect hints instead of direct orders, or they won’t accept tasks and roles that conflict with their culturally assigned relative status with co-workers, or they won’t accept being told to do tasks differently than they had done them before.”

The idea that Maya Angelou’s career amounts to nothing more than a writer shaking her tail feathers to attract the attention of a dominant male is not just misleading; it’s actively embarrassing.