Advanced econometrics

Chapter 13 : Univariate time series

By Lund University

Univariate time series

Univariate time series

Univariate time series

Stochastic process

Stationary stochastic process

AR(1) process

Random walk

MA(1) process

ARMA(p,q) process

The Lag operator and functions of lag operators

The lag operator and the ARMA process

The inverse of 1 + aL

Wold’s representation theorem

The inverse of an arbitrary lag polynomial

Unit root