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Current account sustainability in G7 and BRICS: Evidence from a long-memory model with structural breaks

Author

Listed:
  • Christophe Andre
  • Mehmet Balcilar
  • Tsangyao Chang
  • Luis Alberiko Gil-Alana
  • Rangan Gupta

Abstract

In this paper, we extend the existing literature on current account sustainability by examining the relevance of long memory and structural breaks in modelling the dynamics of current account to gross domestic product (GDP) ratios in G7 and BRICS. Unlike standard unit root tests, which have low power, especially in cases where the series is characterized by a fractional process, the long-memory approach provides an exact measure of the degree of persistence. However, long-memory models are known to overestimate the degree of persistence of the series in the presence of structural breaks. We show that regime changes do exist in both the mean and trend of the current account to GDP ratios. Thus, we test persistence allowing for both smooth and sharp breaks. Our methodology also allows any number of sharp breaks, whereas standard unit root tests only permit either one or two breaks. Hence, our approach is more general and more robust to misspecifications caused by the omission of breaks than standard methods. We show that current accounts are sustainable in both groups of countries, with the G7 and South Africa displaying long-memory behaviour.

Suggested Citation

  • Christophe Andre & Mehmet Balcilar & Tsangyao Chang & Luis Alberiko Gil-Alana & Rangan Gupta, 2018. "Current account sustainability in G7 and BRICS: Evidence from a long-memory model with structural breaks," The Journal of International Trade & Economic Development, Taylor & Francis Journals, vol. 27(6), pages 638-654, August.
    • Handle: RePEc:taf:jitecd:v:27:y:2018:i:6:p:638-654
    DOI: 10.1080/09638199.2017.1410853
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    Cited by:

    1. Vassilis Monastiriotis & Cigdem Borke Tunali, 2020. "The Sustainability of External Imbalances in the European Periphery," Open Economies Review, Springer, vol. 31(2), pages 273-294, April.
    2. Yushi Yoshida & Weiyang Zhai, 2021. "Revisiting the Glick–Rogoff Current Account Model: An Application to the Current Accounts of BRICS Countries," Dynamic Modeling and Econometrics in Economics and Finance, in: Gilles Dufrénot & Takashi Matsuki (ed.), Recent Econometric Techniques for Macroeconomic and Financial Data, pages 265-291, Springer.
    3. António Afonso & José Alves & José Carlos Coelho & Jamel Saadaoui, 2025. "Fiscal and External Sustainability: a Two-Step Time-varying Granger Causality Assessment," Working Papers REM 2025/0369, ISEG - Lisbon School of Economics and Management, REM, Universidade de Lisboa.
    4. Erhan Oruç, 2024. "Sustainability of the Current Account in Developing Countries: A Fourier Wavelet-Based Unit Root Test," Sustainability, MDPI, vol. 16(17), pages 1-14, August.
    5. António Afonso & Florence Huart & João Tovar Jalles & Piotr Stanek, 2020. "Long-run relationship between exports and imports: current account sustainability tests for the EU," Portuguese Economic Journal, Springer;Instituto Superior de Economia e Gestao, vol. 19(2), pages 155-170, May.

    More about this item

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • F32 - International Economics - - International Finance - - - Current Account Adjustment; Short-term Capital Movements

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