The study looked at how changes in interest rates by the government affect things like production, stock market, exchange rates, and inflation in Turkey from 1990 to 2013. They found that when interest rates go up (contractionary policy), exchange rates go up but production, inflation, and stock prices stay the same. When interest rates go down (expansionary policy), production goes up but inflation, exchange rates, and stock prices go down. So, different types of monetary policy have different effects on the economy in Turkey.