Stationarity properties of real interest rates are examined for 21 transition economies. Owing to transaction costs and other frictions, it is quite plausible that we deal with potential non-linearities in the real interest rate. Therefore we examine stationarity of real interest rate allowing...

The purpose of this letter is to re-examine the convergence hypothesis for 21 OECD countries during the period of 1950-2008. Our nonlinear unit root procedures are able to reject the existence of a unit root in both the de-meaned output and the output gap series from USA series for 21 OECD...

This study investigates the relationship between the rate of inflation and the degree of the currency substitution for Turkey during 1986-2006. Our results show that the correlation coefficient between the two variables has not been constant over time. The results of the Multivariate GARCH model...

In this paper, we examine causal relationships among inflation rate, output growth rate, inflation uncertainty and output uncertainty for ten Central and Eastern European transition countries. For this purpose, we estimate a bivariate GARCH model that includes output growth and inflation rates...

In this paper, we propose a nonlinear cointegration test for heterogeneous panels where the alternative hypothesis is an exponential smooth transition (ESTAR) model. We apply our tests for investigating cointegration relationship between energy consumption and economic growth for the G7...

In this paper, we investigate possible nonlinearities in the inflation–output relationship in Turkey for the 1980–2008 period. We first estimate a linear bivariate model for the inflation rate and output gap, and test for linearity of the estimated model against nonlinear alternatives....

In this paper, we re-examine stationarity of the Australian real exchange rate (RER). For this purpose, we modify the test of Kapetanios et al. [Testing for a unit root in the nonlinear STAR framework. Journal of Econometrics 112 (2003), 359-379] to allow for a nonlinear trend function in the...