In this article, we revisit the univariate unobserved-component (UC) model of the US GDP by relaxing the traditional random-walk assumption of the permanent component. Since our general UC model is unidentified, we investigate the upper bound of the contribution of the transitory component, and...

Evidences from the structural vector-error correction model shows that the new business formation and stock prices co-moves with output under news shocks. However, simply incorporating firm dynamics into Jaimovich and Rebelo's (Jaimovich and Rebelo, 2009) model cannot explain these empirical...