Smuggling As Another Cause of Failure of the PPP

In theoretical literature, smuggling is considered as a factor contributing to the deviation of the PPP-based exchange rates from the equilibrium exchange rates with little empirical support. In this paper, we used panel data for 33 developing countries over the period 1982-1995 and used panel unit root and panel co-integration technique along with pooled OLS, fixed effects, random effects, and Parks estimator in an augmented Balassa-Samuelson framework. Using two different proxies for smuggling it is found that smuggling into a country leads to an appreciation of domestic currency that can be considered as another cause of loosing competitiveness by many developing countries