Research


Here my page at Ideas

Publications


Abstract: A shock that increases short-term inflation expectations has negative macroeconomic effects, increasing inflation and decreasing output. The third-order solution of a rich DSGE model with firm dynamics shows that the endogenous increase in uncertainty is key for both amplifying the transmission mechanism and providing robust sign restrictions to identify the inflation expectations shock in an empirical VAR. The model, estimated using limited information impulse response matching techniques, shows the importance of endogenous uncertainty and firm dynamics for the transmission mechanism of an inflation expectations shock. Furthermore, shocks that increase inflation expectations have stronger effects than shocks that reduce inflation expectations.


Abstract: This paper uses a FAVAR model with external instruments to show that monetary policy uncertainty shocks are recessionary and are associated with an increase in firms' exit and a decrease in firms' entry. At the same time, the stock price declines, while the TFP increases in the medium run. To explain this result, we build up and estimate a medium-scale DSGE model featuring firm heterogeneity and endogenous firm entry and exit. These features are crucial in matching the empirical responses. The baseline model outperforms an alternative model without firm dynamics in reproducing the FAVAR responses and implies a larger effect of monetary policy uncertainty shock on the real economic activity.


Abstract: This note considers the Leduc and Liu (JME, 2016) model and studies the effects of their uncertainty shock under different Taylor-type rules. It shows that both the responses of real and nominal variables highly depend on the Taylor rule considered. Remarkably, inflation reacts positively so that uncertainty shocks look more like negative supply shocks, once an empirically plausible degree of interest rate smoothing is taken into account. This result is reinforced with less reactive monetary rules. Overall, these rules alleviate the recession.

Works in progress


Updated version, Online Appendix, Slides (Lancaster, May 2022)

DNB Working Paper, QMUL-SEF Working Paper



Slides (Lancaster, December 2023)



working papers


QMUL-SEF Working Paper, DEMS Working Paper, CEIS Research Paper


mimeo