One important lesson from the financial crisis is that financial factors may have a very strong and deteriorating effect on the transmission mechanism, making standard interest-rate policy much less effective. This motivates more research on how to incorporate financial factors in the standard models of the transmission mechanism used by central banks, and a rapidly increasing volume of such research is now being produced by academic and central-bank researchers and presented at an increasing number of conferences on financial factors and monetary policy. Important questions include how potential output and neutral real interest rates are affected by financial factors and financial distortions (Curdia and Woodford 2009, Walsh 2009), and what impact financial factors have on the general equilibrium effects of  6  BIS Review 112/2009  alternative policy-rate paths on inflation and resource utilization forecasts. 11 Before such extensions to the modelling framework are operational, policymakers and staff have to improvise and apply unusual amounts of judgment on the effects of the financial crisis on the transmission mechanism. Even with much better analytical foundations concerning the role of financial factors in the transmission mechanism, there will of course, as always, be considerable scope for the application of good judgment in monetary policy.
These measures were efficient, at least to some extent. Although sometimes circumvented by banks, they have managed to slow down forex credit growth, providing a wise solution to the problems faced at that time by our economy. Back then, we referred to them as unorthodox monetary policy measures, but after the crisis, the IMF mentioned the National Bank of Romania as being among “the pioneers” of what later became “macroprudential instruments”. After the EU entry, the actual membership in this “convergence club” has fueled and enhanced 3/5  BIS central bankers' speeches  the catching-up process. Being in the EU meant free exchange of goods and services, along with the free movement of capital and labor, which increased trade, foreign direct investment, and migration flows, for the benefit of economic growth in our country. Moreover, in the long run, EU membership fostered convergence through investments from European funds. Romania has certainly come a long way in terms of economic convergence, with growth resuming and gaining momentum after the global economic crisis: its GDP per capita as a share in the EU average (based on PPS) more than doubled from 30.6 percent in 2003 to 62.7 percent in 2017. The advance was the fastest within the group of peer countries that recorded similar trends: for instance, Bulgaria went from 32.4 to 49.3 percent, while Hungary, the Czech Republic and Poland, which started from a more advanced level, added between 7 and 22 percentage points to the same indicator during 2003–2017.