Robertson, Raymond; Kumar, Anil; Dutkowsky, Donald H. - In: Journal of Macroeconomics 42 (2014) C, pp. 241-262
allow for heterogeneous relationships across goods to examine the existence of weak-form and strong-form Purchasing Power … strong-form PPP. Strong-form PPP, though, emerges among actively-traded goods. In contrast, non-traded goods exhibit …