The WGI delivery index is a simple  average of the regulatory quality, government effectiveness, control of corruption and rule of law sub-indicators. 12 By eliminating the costs of foreign exchange payments and settlements and hedging exchange rate risk.
6  This implies that we should have some safety margin on the final numerical objective (aside from the bias inherent in the price index), given the likely negative macroeconomic shock to the lower natural interest rate of Japan's economy over the future which is conducive to the zero bound on the nominal interest rate.