This luncheon address was delivered by the Honourable Peter W.E. Nicholl Deputy Governor of the Reserve Bank of New Zealand during the Annual SEACEN Meeting of Directors of Research and Training for the Operating Year 1993/1994 which was organised by The SEACEN Centre in collaboration with the Reserve Bank of Fiji at Nadi Fiji from 29 – 30 November 1993. The paper starts by reviewing the trends of deregulation and internationalisation of financial markets and describing the features of genetic monetary policy architecture. It then shares the conclusions reached in New Zealand on the appropriate monetary policy regime in a deregulated financial environment. Finally it draws the general lessons about the operation of monetary policy.