When the literature on the relationship between public expenditures and economic growth is examined,two different thoughts appear, namely the Wagner law and the Keynes hypothesis. Since there are two differentarguments on public expenditures and economic growth in the literature, discussions about whether publicexpenditures can be used as a policy tool for economic growth, or not, have been going on for many years. In thispaper, the relationship between education expenditures and economic growth in Turkey, are analyzed in theframework of Keynes hypothesis by using time series data for the period of 1980-2015. Within the scope of thepaper, determining the effect of education expenditures, which has an important share in public expenditures, oneconomic growth is considered to be important for policy makers. In the empirical part of the paper, the NonlinearAutoregressive Distributed Lags (NARDL) model, in which asymmetric effects are taken into account, is utilized.In this paper, choosing an asymmetric cointegration method is important in terms of revealing the hiddencointegration problem by decomposing positive and negative shocks. According to the analysis findings, positiveshocks in education expenditures present results in favor of economic growth in both the short and long run andnegative shocks, on the other hand, present results against economic growth only in the short run. The obtainedfindings support the positive externality of education.