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This study applies quantile unit root test proposed by Koenker and Xiao (J Am Stat Assoc 99(467):775–787, 2004) and Galvao (J Econom 152:165–178, 2009) to revisit the purchasing power parity in 7 transition countries: Bulgaria, Czech Republic, Hungary, Lithuania, Poland, Romania, and Russia over 1998M1 to 2015M3. While traditional unit root tests fail to reject unit root hypothesis, the two quantile...
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