Suppose expected inflation rate ($\pi^e_t$) of an individual is formed as: $\pi^{e}_t = (1 β \theta) \overline{\pi} + \theta \pi_{π‘β1}$ where, $\overline{\pi} $ is constant inflation rate, $\pi_{tβ1}$ is previous yearβs inflation rate, and $ 0 \leq \theta \leq 1$ is weight assigned to inflation rate at different points in time. Then, which of the following is NOT CORRECT?