But for monetary policy to work and stimulate the economy, the interest rates set by the central bank have to be below this equilibrium rate. If one wants to return to a situation in which savings generate returns and conditions are supportive for the financial sector, criticising the central bank achieves nothing.
Action needs to be taken on the fundamentals to boost returns on capital, which would naturally lead to interest rates increasing, and the central bank could follow. On the other hand, it is true that the fact that the yield curve is flat, in other words that interest rates are low across the maturity spectrum, is weighing on the financial sector.