So the time is ripe for a Manifesto in which mainstream economists offer the public a more evidence-based analysis of our problems.

* 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 the dampening effects of private-sector spending cuts.

http://www.manifestoforeconomicsense.org/