Title
Limit theory for random coefficient first-order autoregressive process under martingale difference error sequence
Abstract
Phillips and Magdalinos (2007) [1] gave the asymptotic theory for autoregressive time series with a root of the form @r"n=1+c/k"n, where k"n is a deterministic sequence. In this paper, an extension to the more general case where the coefficients of an AR(1) model is a random variable and the error sequence is a sequence of martingale differences is discussed. A conditional least squares estimator of the autoregressive coefficient is derived and shown to be asymptotically normal. This extends the result of Phillips and Magdalinos (2007) [1] for stationary and near-stationary cases.
Year
DOI
Venue
2011
10.1016/j.cam.2010.11.004
J. Computational Applied Mathematics
Keywords
DocType
Volume
limit theory,asymptotic theory,autoregressive coefficient,martingale difference error sequence,random variable,error sequence,autoregressive time series,squares estimator,random coefficient first-order autoregressive,deterministic sequence,martingale difference,general case,near-stationary case,least square,autoregressive process,first order,asymptotic normality,time series
Journal
235
Issue
ISSN
Citations 
8
0377-0427
2
PageRank 
References 
Authors
0.72
0
3
Name
Order
Citations
PageRank
Zhiwen Zhao1255.23
yang2157.73
Yin Zhang327511.30