During months, economists and commentators alerted us to the risks on financial stability generated by too low or even negative interest rates. Donald Trump election has encouraged financial markets to anticipate a switch of American economic policy: monetary policy would become more restrictive, and the first signal should come next week with an interest rate rise decided by the Federal Reserve Board, while the budgetary policy would become more expansionist through taxes reductions and the launch of a public investments program. Actually, if the first part of this change is granted, the second one is more uncertain. The impact on ...