When an economy has been shocked into a lower level of activity, it could well remain there, unless aggregate demand revives. For aggregate demand to revive, there has to be investment. With greater investment, aggregate demand rises, and as a consequence so does production or income. But private investment, though based on expectation of the future, is at least partly driven by its current state. This is that the government should raise aggregate demand, preferably through investment, to take the economy back to where it was in late March.

Source: Hindustan Times June 21, 2020 14:32 UTC