Economics · Time Series Econometrics
Consider the time series process y t - y t-1 = α + ε t , where ε t is a white noise process and α ≠ 0. Such a process is known as a:
- 1deterministic trend process without noise
- 2stationary ARMA process with drift
- 3random walk process without drift
- 4random walk process with drift✓
Correct answer
random walk process with drift
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