This paper analyzes the properties of multivariate tests of purchasing power parity (PPP) that fail to take heterogeneity in the speed of mean reversion across real exchange rates into account. We compare the performance of homogeneous and heterogeneous unit root testing methodologies. The...

In this paper we investigate purchasing power parity (PPP) in a panel with 17 countries for the period 1972 through 1996. The novel feature of our panel methodology is that results are invariant to the choice of a benchmark on numeraire currency. In the panel we allow individual country effects...

Using an extensive Australian sample, we explore two related issues in the context of a default risk asset-pricing factor (DEF) over the business cycle: whether a DEF can explain the size premium in the three-factor Fama–French (FF) model; and whether a DEF has a separate role itself in a...