Exchange Rate Volatility and Choice of Anchor Currency- Prospects for a Melanesian Currency Union*

University of Otago, New Zealand for insightful comments and suggestions. This paper is based on my PhD dissertation. The errors in the paper are entirely my own. This paper investigates an appropriate choice of anchor currency for a proposed Melanesian currency union under various hypothetical currency union arrangements. Drawing from the optimal currency area (OCA) theory and related extensions, the analysis focuses on the effects of a currency union on exchange rate volatility following similar approach by Scrimgeour (2002). Counterfactual exchange rate series are constructed for alternative scenarios for Melanesia with the following major trading partners: Australia, New Zealand, USA and Japan. The main findings showed that both short-term and cyclical exchange rate volatility are generally lower in a currency union with either Australia or New Zealand. However, the results vary under varying weights and currency baskets. Choosing a single common anchor currency based solely on exchange rate volatility may not be conclusive. Hence, further research is required, for example, in considering the effects of a currency union on volatility in output, inflation or interest rates