The central bank’s primary aim is to maintain a real positive interest rate, at a level that balances the objectives of economic growth (low-interest rate) and savings (high-interest rate). However, there are many other complications, for example, maintaining currency at the desired level, which is again a function of interest rates. Over the past decade, developed economies are facing the challenge of low growth, due to which they are following the Negative Interest Rate Policy (NIRP) in a desperate attempt to pump up the growth.