Gümüşhane Üniversitesi Sosyal Bilimler Dergisi, cilt.10, sa.1, ss.18-31, 2019 (Hakemli Dergi)
For last years, the consequences of the implication of daylight saving time has been discussed frequently, daylight saving time haseffects on many field of the daily routine such as electricity consumption, human health, performance, behavior and well-being ofindividuals. Since the cabinet decision in 2016, Turkey has been implementing the summertime throughout the whole year in order tosave energy. Therefore, the main aim of this study is to analyze the effects of this change on economic growth and labor productivityby employing quarterly data for the time period 2006:Q1 and 2018:Q1 for Turkey and Threshold AR model in order to incorporate thenonlinear behavior in considered time series. The results show significant effect of this policy change on economic growth and laborproductivity as well as nonlinear behavior in the time series due to continuous fluctuations in the data throughout time which can beclassified into at least two regimes as recession and expansion. As a conclusion, the policy makers should evaluate the effects ofdaylight saving time (DST) on different indicators before the changes in the implementation.