Characteristic Equation of an AR(1) Model 

This is the video associated with QR code QR5.3 in Chapter 5 of Time Series for Data Science: Analysis and Forecasting by Woodward, Sadler, and Robertson timeseriesford... . This book contains over 80 videos, of which this is one. In this video we derive the characteristic polynomial and characteristic equation for an autoregressive model of order 1 (AR(1)). Dr. Sadler discusses its use for assessing stationarity of an AR(1) process.