On the fiscal side, the authorities can cut taxes or increase spending to support income and demand during the deleveraging phase that follows the financial crisis. But the ability of such stimulus to continue to support economic activity ultimately encounters budgetary limits. For example, the need to keep the long-term fiscal trajectory on a sustainable path limits the size and duration of federal fiscal stimulus measures. For state and local governments, the statutory requirements for balanced budgets meant that fiscal policies turned restrictive relatively quickly once budget surpluses and rainy day funds were exhausted, and this was only temporarily mitigated by federal transfers to the states as part of the initial fiscal stimulus program. Fiscal policy is now a drag rather than a support to growth in the United States, and this will likely continue. BIS central bankers’ speeches  3  Monetary policy I would give each of these four explanations some weight for why the recovery has been consistently weaker than expected. But I would add a fifth, monetary policy, while highly accommodative by historic standards, may still not have been sufficiently accommodative given the economic circumstances. Now let me be clear. I believe the evidence overwhelmingly indicates that our monetary policy has been effective in easing financial conditions and supporting economic activity.
First, the spending decisions of the older age cohorts are less likely to be easily stimulated by monetary policy. That is because such age groups tend to spend less of their incomes on consumer durables and housing. Second, as the population ages and the number of retirees climbs, the costs associated with Social Security, government pensions, and healthcare retirement benefits increase. This creates budgetary pressure and leads to a choice of raising revenue to fund these costs, cutting other government programs, or cutting benefits. Now if this all had been fully anticipated by retirees and near-retirees, then this would already be factored into their spending and saving decisions. But, I doubt that this has been the case. I suspect that many have been surprised by the swift change in economic circumstances as the housing boom went bust. I doubt that many fully anticipated the budget crunch and the prospect that their future retiree and healthcare benefits would likely be curbed or their taxes would have to rise in the future. When households begin to anticipate this, they reduce their assessment of their sustainable living standards. This downward reassessment then feeds back to current spending and saving decisions. A fourth reason why the recovery has been slower than expected may be that we overestimated the capacity for fiscal policy to continue to provide support to growth until a vigorous recovery was achieved.