Efficient Quasi-likelihood Estimation for Nonlinear Time Series Models and Its Application

Kim, Sahmyeong;Cha, Kyungyup;Lee, Sungduck

  • Published : 2003.04.01


Quasi likelihood estimators defined by Wedderburn are derived for several nonlinear time series models. And also, the least squared estimator and Quasi-likelihood estimator are compared in sense of asymptotic relative efficiency at those models. Finally, we apply these estimations to a real data on exchanging rate and stock market prices.


Quasi likelihood estimator;Random Coefficient Autoregressive model;ARCH model;Asymptotic relative efficiency


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