The purpose of this paper is to analyze empirically the contribution of tertiary level education by fields on economic growth for 29 developed and 25 developing countries over the period 1998-2012. Using the two-step System Generalized Method of Moments (GMM), we find that in the developed...

The validity of Purchasing Power Parity (PPP) is re-examined using data for some emerging market economies and African countries, extending recent works of Doğanlar <italic>et al.</italic> (2009) and Chang <italic>et al.</italic> (2010), respectively. For this purpose, we apply new unit root tests that allow for nonlinearities...

In this paper we investigate the real interest parity hypothesis for ten post-Soviet transition countries with respect to Russia, the USA and Germany. For this purpose, we employ conventional linear unit root tests as well as a nonlinear unit root test developed by Kapetanios et al. (2003) to...