If cautious firms pile up more savings, the prospects for recovery are poor. Economies will be stuck in the current—and odd—configuration where corporate surpluses fund government deficits. If firms loosen their purse-strings to hire workers and to invest, that will allow governments to scale back their borrowing.
Firms are not investing because they don’t see much demand for their products now or in the near-term future. And, of course, we end up with a self-fulfilling prophecy. One possible strategy would be to offer a temporary investment tax credit or accelerated depreciation allowance.