This thesis is organized in three chapters. In the first two chapters, an econometric model selection procedure and a method to improve some existing estimators are proposed. In the third chapter, a theoretical microeconomic analysis of herd behavior is performed under a fairly new set of...

First chapter of my dissertation uses an EGARCH method and a Stochastic Volatility (SV) method which relies upon Markov Chain Monte Carlo (MCMC) framework based on Efficient Importance Sampling (EIS) to model inflation volatility of Turkey. The strength of SV model lies in its success in...