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External Adjustment in a Resource-Rich Economy: The Case of Papua New Guinea

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  • Ryota Nakatani

Abstract

How should resource-rich economies handle the balance of payments adjustment required after commodity price declines? This paper addresses the question theoretically by developing a simple two-period multi-sector model based on Nakatani (2016) to compare different exchange rate policies, and empirically by estimating elasticities of imports and commodity exports with respect to exchange rates using Papua New Guinean data. In the empirical part, using various econometric methods, I find the statistically significant elasticities of commodity exports to real exchange rates. In the theoretical part, by introducing the notion of a shadow exchange rate premium, I show how the rationing of foreign exchange reduces consumer welfare. Using the estimated elasticities and theoretical outcomes, I further discuss policy implications for resource-rich countries with a focus on Papua New Guinea.

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  • Ryota Nakatani, 2017. "External Adjustment in a Resource-Rich Economy: The Case of Papua New Guinea," IMF Working Papers 2017/267, International Monetary Fund.
    • Handle: RePEc:imf:imfwpa:2017/267
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    1. Nakatani, Ryota, 2018. "Real and financial shocks, exchange rate regimes and the probability of a currency crisis," Journal of Policy Modeling, Elsevier, vol. 40(1), pages 60-73.
    2. Nakatani, Ryota, 2018. "Adjustment to negative price shocks by a commodity exporting economy: Does exchange rate flexibility resolve a balance of payments crisis?," Journal of Asian Economics, Elsevier, vol. 57(C), pages 13-35.
    3. Ryota Nakatani, 2019. "Firm performance and corporate finance in New Zealand," Applied Economics Letters, Taylor & Francis Journals, vol. 26(13), pages 1118-1124, July.
    4. Ryota Nakatani, 2019. "Output Costs of Currency Crisis and Banking Crisis: Shocks, Policies and Cycles," Comparative Economic Studies, Palgrave Macmillan;Association for Comparative Economic Studies, vol. 61(1), pages 83-102, March.
    5. Nakatani, Ryota, 2017. "Structural vulnerability and resilience to currency crisis: Foreign currency debt versus export," The North American Journal of Economics and Finance, Elsevier, vol. 42(C), pages 132-143.
    6. Ryota Nakatani, 2019. "A Possible Approach to Fiscal Rules in Small Islands — Incorporating Natural Disasters and Climate Change," IMF Working Papers 2019/186, International Monetary Fund.
    7. Ryota Nakatani, 2021. "Fiscal Rules for Natural Disaster- and Climate Change-Prone Small States," Sustainability, MDPI, vol. 13(6), pages 1-26, March.
    8. Ryota Nakatani, 2017. "The Effects of Productivity Shocks, Financial Shocks, and Monetary Policy on Exchange Rates: An Application of the Currency Crisis Model and Implications for Emerging Market Crises," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 53(11), pages 2545-2561, November.

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