Recently, Diebold and Kilian [Unit root tests are useful for selecting forecasting models, Journal of Business and Economic Statistics 18, 265-273, 2007] and Niwitpong [Effect of Preliminary unit roots on predictors for an unknown mean AR(1) process, Thailand Statistician 7, 71-79, 2009] indicated that the preciseness of a predictor for an AR(1) process can be increased by using the preliminary...

This paper proposes a new panel unit root test based on Simes’ [Biometrika 1986, “An Improved Bonferroni Procedure for Multiple Tests of Significance”] classical intersection test. The test is robust to general patterns of cross-sectional dependence and yet straightforward to implement, only requiring p-values of time series unit root tests of the series in the panel, and no resampling. Monte C...

This paper proposes a new panel unit root test based on Simes’ [Biometrika 1986, “An Improved Bonferroni Procedure for Multiple Tests of Significance”] classical intersection test. The test is robust to general patterns of cross-sectional dependence and yet straightforward to implement, only requiring p-values of time series unit root tests of the series in the panel, and no resampling. Monte C...

In this study, it is aimed to examine the relationship between energy imports and defense expenditures in context of supply security for Turkey period 1990-2019. DF-GLS unit root test, Bayer-Hanck (2012) cointegration test Nazlioglu et al. (2016) Fourier Granger causality analysis Enders Jones tests were used causal relationships variables. According findings variables, was concluded that there...

With the changes in economic structure and social development, paths of most variables show characteristics structural changes. Traditional unit root tests, such as ADF PP often lead to wrong conclusions about data stationarity when considering variation factors. This paper considers test power statistic with one break using Monte Carlo simulation generating process has double breaks both inter...