The level of public debt and its costs for the State budget have been used in France as a scarecrow by politicians for about ten years. These threats were held up when tax increases or expenditures reductions had to be voted. Everything has changed these last days. As a miracle, Bercy has admitted that the cost of the debt was going to fall. It will allow financing the new expenditures or the receipts reductions generated by the measures announced by the President of the Republic in December right in the middle of the “gilets jaunes” crisis. They had been evaluated ...