Recent evidence suggests that while real exchange rates exhibit mean reversion, the reversion only sets in once a minimum "threshold" distance from the mean has been exceeded. The non-linearity has generally been attributed to costly arbitrage, which requires a minimum divergence before the...

The authors review recent international price comparisons to examine the veracity of claims about “rip-off Britainâ€. They reach three conclusions. First, methodologically, the data requirements for a meaningful price comparison are very demanding and most of the evidence does not meet...