What happened Turkcell Iletisim Hizmetleri (NYSE: TKC), the Turkish telecom most usually known to investors simply as "Turkcell," became one of the biggest losers on the New York Stock Exchange today, falling 14.6% through 10 a.m. EDT. Unfortunately for Turkish consumers, and unfortunately for Turkcell investors, central bank governor Naci Agbal had been credited with leading the fight against inflation in the lira, which had been running around 15% annually prior to his appointment. Agbal's firing, therefore, has investors spooked that inflation could now run rampant if the central bank stops tightening the spigots on its money supply.