This book attempts to develope some new inferential procedures for time
series regression models.An inferential method for a time series linear
regression model with auto correlated disturbances using quarterly data,
has been developed by proposing a test based on internally studentized
residuals.Two modified estimation procedures have been proposed for time
series regression models involving MA (1) and MA (q) process
errors.Autoregressive moving averages and autoregressive conditionally
heteroscadastic (ARCH) processesses have been specified systematically
with their characteristics. The generalized ARCH model is specified and
the effect of error structure on ARCH model has been explained. Two
modified tests for detecting the problem of ARCH errors have been
developed by using Box-pierce-lying test statistics based on internally
studentized residuals. A new estimation procedure has been developed for
ARCH model by using an interactive technique