It is inevitable that the crisis of the sars coronavirus causes a major drop in activity in the second quarter in Europe and the United States (we’re talking a drop of 20 %, 30 % or even more of the GDP on a quarter). It is impossible for economic policy to avoid a decline in the production since, confined spaces, certain employees can’t work.

The role of the economic policy is therefore to ensure that this drop in activity does not generate a persistent crisis, it remains a crisis point, over a period of time as short as possible. It is therefore necessary to ask first what that…