The economic consequences of the corona virus outbreak have an exceptional extent. In France, the first results of the Banque de France inquiries provide an estimation of the GDP fall during the 1st quarter of 6%. The government is forecasting for the full year a recession with the same magnitude. Support measures in favor of enterprises and the increasing of health and unemployment compensation expenditures could generate a public deficit above 7% and public debt could overpass at the end of the year 120% of GDP under the cumulative effect of the contraction of the denominator and the increase ...