Business Cycles, growth, frequency domain techniques in economics, firms' capital structures, leverage and growth, panel data econometrics. Publications:
Yıldırım, N., 2015. “Not leverage but change in leverage matters for firms’ future growth: Evidence from Turkey’s top 1000”, International Economic Journal, 29 (3), 503-525.
Yıldırım, N. and H. Taştan, 2012. “Capital flows and economic growth across spectral frequencies: Evidence from Turkey”, Panoeconomicus, 59 (4), 441-462.
Yıldırım, N., 2011. “No Appealing Future For High Growth – Low Profitability Firms: Evidence from Turkey’s Top 1000”, İktisat, İşletme ve Finans, 26 (307), 31-45.
Taştan, H. and N. Yıldırım, 2008. “Business Cycle Asymmetries in Turkey: An Application of Markov-Switching Autoregressions”, International Economic Journal, Vol. 22, No 3, 315-333, Sept. 2008.
Yıldırım, N. and H. Taştan, 2007. “Measuring Business Cycles in Emerging Market Economies: Turkish Case”, Yapı Kredi Economic Review, 18 / 2, Dec. 2007.
Yıldırım, N., 2007. İktisatta Frekans-Alan (Spektral Analiz) Teknikleri: Kuramsal Çerçeve ve Türkiye Uygulaması (The frequency domain (spectral analysis) techniques in economics: Theory and Some Applications to the Turkish economy) , YTÜ Yayınları, İstanbul.
Yıldırım, N., 2004. “Size and Book-to-Market Effects: Evidence from the İstanbul Stock Exchange (ISE)”, The ISE Review, Vol. 8, No 31.