We demonstrate a statistical procedure for selecting the most suitable empirical model to test an economic theory, using the example of the test for purchasing power parity based on the Big Mac Index. Our results show that supporting evidence for purchasing power parity, conditional on the Balassa?Samuelson effect, depends crucially on the selection of models, sample periods and economies used for estimations.
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Paper provided by Institute of Economic Research, Hitotsubashi University in its series Discussion Paper Series with number
a446.
Find related papers by JEL classification: F31 - International Economics - - International Finance - - - Foreign Exchange C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data
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