Those of us of a certain age remember the right-wing political slogan, “America, love it or leave it.” I’ve seen it credited to journalist Walter Winchell, who used it in his defense of Joseph McCarthy’s anti-communist witch hunt. But it’s heyday was in the 1960s, against the participants in the antiwar movement in the United States and (in translation, ame-o ou deixe-o) in the early 1970s, by supporters of the Brazilian military dictatorship.*
I couldn’t help but be reminded of that slogan in reading the recent exchange between the anonymous author of Unlearning Economics and Simon Wren-Lewis (to which Brad DeLong has chimed in, on Wren-Lewis’s side).
Unlearning Economics puts forward an argument I’ve made many times on this blog (as, of course, have many others), that mainstream economics deserves at least some of the blame for the spectacular crash of 2007-08 (and, I would add, the uneven nature of the recovery since then).
the absence of things like power, exploitation, poverty, inequality, conflict, and disaster in most mainstream models — centred as they are around a norm of well-functioning markets, and focused on banal criteria like prices, output and efficiency — tends to anodise the subject matter. In practice, this vision of the economy detracts attention from important social issues and can even serve to conceal outright abuses. The result is that in practice, the influence of economics has often been more regressive than progressive.
Therefore, Unlearning Economics argues, a more progressive move is to challenge the “rhetorical power” of mainstream economics and broaden the debate, by focusing on the human impact of economic theories and policies.
Who could possibly disagree?
Well, Wren-Lewis, for one (and DeLong, for another). His view is that the only task—the only progressive task—is to criticize mainstream economics on its own terms. Even more, he argues that we need mainstream economics, because there should only be one economic theory, on which everyone can and should agree.
Now imagine what would happen if there was no mainstream. Instead we had different schools of thought, each with their own models and favoured policies. There would be schools of thought that said austerity was bad, but there would be schools that said the opposite. I cannot see how that strengthens the argument against austerity, but I can see how it weakens it.
The alternative view is that the discipline of economics has a hegemonic economic discourse (constituted, at least in the postwar period, by an ever-changing combination of neoclassical and Keynesian economics) and a wide variety of other, nonmainstream economic theories (inside the discipline of economics, as well as in other academic disciplines and outside the academy itself). Reducing the critique of austerity (or any other economic policy or strategy) to the issues raised by mainstream economists actually impoverishes the debate.
Sure, there’s a mainstream critique of austerity: cutting government expenditures in the midst of a recession reduces (at least in most cases) the rate of economic growth. But there are also other criticisms, which don’t and simply can’t be formulated by mainstream economists. From a Marxian perspective, for example, austerity (of the sort we’ve seen in recent years in Europe and even to some extent in the United States, not to mention all the other examples, especially as part of IMF-sponsored stabilization and adjustment programs, around the world) often serves to raise the rate of exploitation. Feminist economists, too, have lodged criticisms of austerity, since it often shifts the burden of adjustment onto women. Radicals, for their part, worry about the effects on power relations. And the list goes on.
They’re all different—perhaps overlapping but not necessarily mutually compatible—criticisms of austerity policies. They raise different issues, precisely because they’re inspired by different, mainstream and heterodox, economic theories.
Wren-Lewis, in his response to Unlearning Economics, wants to limit the debate to the terms of mainstream economics, which is the disciplinary equivalent of “love it or leave it.”
*There’s also the awful song by Jimmie Helms, recorded by Ernest Tubb:
occasional links & commentary 
It seems those writers see economics as the defining and essential component of our society. It is like a mechanic I once teased about only using two tools. A hammer and chisel. I think Polanyi saw economics as a tool that could improve social life of people but economists in the mainstream see people and their social lives as serving their particular religion. Another metaphor is the tail wagging the dog. As was said about another issue, if you are not part of the solution you are part of the problem. Mainstream economics is not part of the solution. It is the tail wagging the dog.