Abstract: The main purpose of this study is to investigate the validity of Marshall-Lerner condition and the existence of J curve for the Turkish economy. Because of transition to the floating exchange rate regime in 2001, the analyzing period has been chosen as 2003-2016 to use monthly data for the related variables. After conducting unit- root and cointegration tests, the estimated VECM results show that Marshall- Lerner condition holds for the Turkish case. On the other hand, estimated VECM produces impulse- response functions that prove the existence of J curve for the Turkish economy in the long run.