In this paper we show the consequences of applying a panel unit root test when testing for a purchasing power parity relationship. The distribution of the tests investigated, including the IPS test of Im et al (1997), are influenced by a common stochastic trend which is usually not accounted...

Walter Korpi argues in a previous issue of Challenge (March/April 2000) that Swedish economists' claim that Sweden's growth performance has been inferior to that of other industrialized countries is at odds with the facts. Since Sweden has not grown slowly relative to other countries, there is...

What is the long-run relationship between monetary and fiscal policies? This paper provides an answer by examining a large set of data covering major economies during the past 115 years. The evidence suggests the existence of a close interaction between the monetary regime, that is the behaviour...