Modélisation de la marge d'intermédiation des banques

The intermediation margin of banks, i.e. their net lending income, has rarely been subjected to econometric analysis. This article proposes a model based on a asset-liability approach in the tradition of monopolistic banking theory. In practice, our work seeks to achieve two objectives. The first is to analyse the sensitivity of the intermediation margin of commercial banks to sudden changes in business volume and interest rates. The second is to project the trend of this margin. The consistency of results and the prediction capacity of this model make it an operational tool for the authorities as well as the banks themselves.