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Real exchange rates and time-varying trade costs

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  • Pavlidis, Efthymios G.
  • Paya, Ivan
  • Peel, David A.

Abstract

This paper re-examines the empirical modeling of Purchasing Power Parity (PPP) deviations in the presence of commodity market frictions. First, we show that a specific type of smooth transition models can closely approximate the functional form of the theoretical adjustment mechanism derived by Dumas (1992) [Dynamic Equilibrium and the Real Exchange Rate in a Spatially Separated World, Review of Financial Studies,5:2153-180] for the case of constant as well as changing trade costs. Second, we develop, for the first time, an empirical model of the real exchange rate which allows for changes in the degree of market integration. By employing a long span of data on the Dollar-Sterling real exchange rate and a micro-founded proxy for trade frictions, we provide novel evidence of a significant relationship between the persistence of the real exchange rate and the level of trade costs. This finding suggests that both the difficulty of detecting PPP and the extend of Rogoff's puzzle vary over time with the degree of trade restrictiveness. Finally, we highlight policy repercussions of our results.

Suggested Citation

  • Pavlidis, Efthymios G. & Paya, Ivan & Peel, David A., 2011. "Real exchange rates and time-varying trade costs," Journal of International Money and Finance, Elsevier, vol. 30(6), pages 1157-1179, October.
    • Handle: RePEc:eee:jimfin:v:30:y:2011:i:6:p:1157-1179
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    3. Janice Breuer & Vikram Kumar & Shyam Suresh, 2015. "Inter-Temporal Purchasing Power Parity," Open Economies Review, Springer, vol. 26(5), pages 869-891, November.
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    6. Efthymios Pavlidis & Nicos Pavlidis, 2012. "Dynamic Estimation of Trade Costs from Real Exchange Rates," Working Papers 21883757, Lancaster University Management School, Economics Department.
    7. Lim, Eun Son & Breuer, Janice Boucher, 2019. "Free trade agreements and market integration: Evidence from South Korea," Journal of International Money and Finance, Elsevier, vol. 90(C), pages 241-256.
    8. Maria Eleftheriou & Nikolas A. Müller-Plantenberg, 2018. "The Purchasing Power Parity Fallacy: Time to Reconsider the PPP Hypothesis," Open Economies Review, Springer, vol. 29(3), pages 481-515, July.
    9. Adrian Marek Burda & Blazej Mazur & Mateusz Pawel Pipien, 2017. "Forecasting EUR/PLN Exchange Rate: the Role of Purchasing Power Parity Hypothesis in ESTVEC Models," Dynamic Econometric Models, Uniwersytet Mikolaja Kopernika, vol. 17, pages 97-114.
    10. José María Serrano & María Dolores Gadea & Marcela Sabaté, 2016. "Lost in intervention. The Harrod--Balassa--Samuelson effect on the peseta/dollar real exchange rate (1870--1998)," Applied Economics Letters, Taylor & Francis Journals, vol. 23(14), pages 1012-1017, September.
    11. Nicolau João, 2011. "Purchasing Power Parity Analyzed from a Continuous-Time Model," Studies in Nonlinear Dynamics & Econometrics, De Gruyter, vol. 15(3), pages 1-26, May.

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