We show that the use of the real effective exchange rate to test for purchasing power parity, as in Astorga (2012) and other studies, is subject to a problem that biases tests against finding evidence of PPP. The problem is illustrated using Astorga´s data on six Latin American countries.

I analyse the "spurious regression problem" from the Classical Regression Model (CRM) point of view. Simulations show that the autocorrelation corrections suggested by the CRM, e.g., feasible generalised least squares, solve the problem. Estimators are unbiased, consistent, efficient and deliver...

This study applies the Sequential Panel Selection Method (SPSM) to test the mean reversion properties in the current account balance as percentages of GDP for the ten OECD countries (Australia, Canada, Finland, Germany, Korea, Mexico, Norway, Switzerland, United Kingdom and United States) over...

As spread between the WTI and Brent crude oil price is widening after early 2011, it could be that the price relationship between these crude oil is changing. To see if such change affected the price linkages among the international crude oil markets, this study investigates if the world's major...