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.

We study whether there is a long-run relationship between Mexican current account (CA) revenues and expenditures. Our results show that evidence in favor of this claim is drawn only when (at least) three structural break levels are allowed. The CA therefore behaves as a broken-mean stationary...

Christiano and Fitzgerald (2003) found a significant, positive correlation between M2 money growth and CPI inflation in all examined frequency bands for the U.S. prior to 1961. However, for post-1960 data, they found a positive correlation only in the frequency band corresponding to cycles of...

The Kapetanios, Shin, and Snell (KSS, 2003) test for a nonlinear unit root is used to study purchasing power parity using Taylor's extensive data set, d to include recent exchange rate and price level data. The results i) indicate that PPP holds with respect to the US dollar for most countries...

Christiano and Fitzgerald (2003) found a significant, positive correlation between M2 money growth and CPI inflation in all examined frequency bands for the U.S. prior to 1961. However, for post-1960 data, they found a positive correlation only in the frequency band corresponding to cycles of...

The Kapetanios, Shin, and Snell (KSS, 2003) test for a nonlinear unit root is used to study purchasing power parity using Taylor's extensive data set, d to include recent exchange rate and price level data. The results i) indicate that PPP holds with respect to the US dollar for most countries...

The concept of Granger-Causality (GC) is widely used to draw inference concerning causality in applied economics. Stationary series are the term of reference used in GC testing, which is generally studied by means of a standard Dickey-Fuller test. We prove that, when the Data Generating Process...

This paper investigates the asymptotic behavior of the t-ratio associated to an irrelevant variable in a three-variable cointegration analysis. It is proved that the t-ratio converges to a non-standard distribution suitable for statistical inference. Although the test-statistic is not pivotal...

The concept of Granger-Causality (GC) is widely used to draw inference concerning causality in applied economics. Stationary series are the term of reference used in GC testing, which is generally studied by means of a standard Dickey-Fuller test. We prove that, when the Data Generating Process...