1. Consider a random walk model with no drift as follows Yt =Yt-1 +et where E(et)=0,V(et)=02 and ets are uncorrelated. S

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1 Consider A Random Walk Model With No Drift As Follows Yt Yt 1 Et Where E Et 0 V Et 02 And Ets Are Uncorrelated S 1 (25.96 KiB) Viewed 43 times

1. Consider a random walk model with no drift as follows Yt =Yt-1 +et where E(et)=0,V(et)=02 and ets are uncorrelated. Show how you can obtain the autocorrelation function at lag k, denoted by pk (Recall that we have obtained the autocovariance function for a random walk in-class).