First, an explanation of how the current “conventional wisdom” took root:

In September the Committee for a Responsible Federal Budget (CRFB), a bipartisan deficit-hawk group based at the New America Foundation, held a high-profile symposium urging the Congressional “supercommittee” to “go big” and approve a $4 trillion deficit reduction plan over the next decade, which is well beyond its $1.2 trillion mandate. The hearing began with an alarming video of top policy-makers describing the national debt as “the most serious threat that this country has ever had” (Alan Simpson) and “a threat to the whole idea of self-government” (Mitch Daniels). If the debt continues to rise, predicted former New Mexico Senator Pete Domenici, there would be “strikes, riots, who knows what?” A looming fiscal crisis was portrayed as being just around the corner.

The event spotlighted a central paradox in American politics over the past two years: how, in the midst of a massive unemployment crisis—when it’s painfully obvious that not enough jobs are being created and the public overwhelmingly wants policy-makers to focus on creating them—did the deficit emerge as the most pressing issue in the country? And why, when the global evidence clearly indicates that austerity measures will raise unemployment and hinder, not accelerate, growth, do advocates of austerity retain such distinction today?

An explanation can be found in the prominence of an influential and aggressive austerity class—an allegedly centrist coalition of politicians, wonks and pundits who are considered indisputably wise custodians of US economic policy. These “very serious people,” as New York Times columnist Paul Krugman wryly dubs them, have achieved what University of California, Berkeley, economist Brad DeLong calls “intellectual hegemony over the course of the debate in Washington, from 2009 until today.”

Its members include Wall Street titans like Pete Peterson and Robert Rubin; deficit-hawk groups like the CRFB, the Concord Coalition, the Hamilton Project, the Committee for Economic Development, Third Way and the Bipartisan Policy Center; budget wonks like Peter Orszag, Alice Rivlin, David Walker and Douglas Holtz-Eakin; red state Democrats in Congress like Mark Warner and Kent Conrad, the bipartisan “Gang of Six” and what’s left of the Blue Dog Coalition; influential pundits like Tom Friedman and David Brooks of the New York Times, Niall Ferguson and the Washington Post editorial page; and a parade of blue ribbon commissions, most notably Bowles-Simpson, whose members formed the all-star team of the austerity class.

Next, a bunch of smart people who aren’t in bed with Wall Street and/or enamored with access to power explain why the deficit hawks are full of it:

The causes. Many policy makers insist that the crisis was caused by irresponsible public borrowing. With very few exceptions – other than Greece – this is false. Instead, the conditions for crisis were created by excessive private sector borrowing and lending, including by over-leveraged banks. The collapse of this bubble led to massive falls in output and thus in tax revenue. So the large government deficits we see today are a consequence of the crisis, not its cause.

The nature of the crisis. When real estate bubbles on both sides of the Atlantic burst, many parts of the private sector slashed spending in an attempt to pay down past debts. This was a rational response on the part of individuals, but – just like the similar response of debtors in the 1930s – it has proved collectively self-defeating, because one person’s spending is another person’s income. The result of the spending collapse has been an economic depression that has worsened the public debt.

The appropriate response. At a time when the private sector is engaged in a collective effort to spend less, public policy should act as a stabilizing force, attempting to sustain spending. At the very least we should not be making things worse by big cuts in government spending or big increases in tax rates on ordinary people. Unfortunately, that’s exactly what many governments are now doing.

The big mistake. After responding well in the first, acute phase of the economic crisis, conventional policy wisdom took a wrong turn – focusing on government deficits, which are mainly the result of a crisis-induced plunge in revenue, and arguing that the public sector should attempt to reduce its debts in tandem with the private sector. As a result, instead of playing a stabilizing role, fiscal policy has ended up reinforcing and exacerbating the dampening effects of private-sector spending cuts.

The authors of the Manifesto for Economic Sense want you to sign onto their pledge and I want you to do it too. If you’re hesitant to do so, I want you to think long and hard about how cutting a disabled elderly woman’s food stamps and Social Security is going to help your local economy, or your own financial status.