The Balassa–Samuelson Effect in a Developing Country

Some Asian countries experience small real exchange rate appreciations or even a real depreciation despite a fast growth in tradable productivity. A key‐characteristic of these countries is that they are constrained on capital inflows. Is the Balassa–Samuelson theory still valid in those countries? Are there other factors likely to explain real exchange rate (RER) changes? To address these questions, we develop a two‐sector model in which a small open economy faces a constraint on capital inflows. In this setting, the RER does not only depend on productivity, but also on other factors like the rate of time preference, the age dependency ratio or the level of the external constraint. A calibration of the constrained economy model seems to match at least qualitatively empirical evidence for China, Hong Kong, Indonesia, Malaysia, Thailand, and Singapore, between 1970 and 1992.