Avrupa Birliği Ülkelerinde Cari İşlemler Hesabinin Sürdürülebilirlik Analizi: FADF ve FKSS Birim Kök Testleri

This paper examines the sustainability of current account in 27 European Union countries over period 2005Q1-2020Q3. First, series which is considered as ratio to gross domestic product, was applied traditional unit root test ADF and nonlinear KSS. According test, stationary 9 according KSS 5 countries. Later, FADF FKSS tests based on Fourier were applied. results, found 10 for 3 FKSS. results are valid whose trigonometric terms insignificant. these it can be said that should taken into account.