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Non‐linearities in international prices

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  • Inkoo Lee
  • Sang Soo Park
  • Marios Zachariadis

Abstract

We consider multiple sources of non‐linearity in good‐level law‐of‐one‐price deviations across the globe using a structural model that accounts for previously omitted variables and allows estimation of good‐level convergence rates both within and outside the bands of no trade. Accounting for the role of theoretically implied variables and their non‐linear interactions in the convergence process of law‐of‐one‐price deviations, we find that good‐level convergence rates are systematically faster compared with convergence estimates based on reduced‐form models. Contrary to conventional wisdom, good‐level price differentials exhibit mean‐reverting behaviour even within the bands of no trade. Moreover, mean‐reversion rates are strongly related to economic characteristics such as tradability and a good's non‐traded input content. Non‐linéarités dans les prix internationaux. Nous envisageons plusieurs sources de non‐linéarité dans les déviations á la loi du prix unique sur le marché des biens dans le monde entier á l'aide d'un modèle structurel qui tient compte des variables précédemment omises et qui permet une estimation des taux de convergence sur le marché des biens á la fois á l'intérieur et á l'extérieur des catégories de biens non échangeables. En tenant compte du rôle des variables théoriquement implicites et de leurs interactions non linéaires dans le processus de convergence des déviations á la loi du prix unique, nous constatons que les taux de convergence sur le marché des biens sont systématiquement plus rapides que les estimations de la convergence fondées sur les modèles de la forme réduite. Contrairement aux idées reçues, les différentiels de prix sur le marché des biens présentent un comportement de retour á la moyenne même au sein des catégories de biens non échangeables. De plus, les taux de retour á la moyenne sont fortement liés aux caractéristiques économiques, comme l'échangeabilité et le contenu de l'intrant non commercial d'une marchandise

Suggested Citation

  • Inkoo Lee & Sang Soo Park & Marios Zachariadis, 2023. "Non‐linearities in international prices," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 56(3), pages 1032-1062, August.
  • Handle: RePEc:wly:canjec:v:56:y:2023:i:3:p:1032-1062
    DOI: 10.1111/caje.12672
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    JEL classification:

    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

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