-varying uncertainty, highlighted in the literature. -- Ss model ; RBC model ; lumpy investment ; countercyclical risk ; aggregate shocks …

effect of time-varying uncertainty, highlighted in the literature. -- Ss model ; RBC model ; lumpy investment …

of firm-level investment is procyclical. We show that a heterogeneousfirm RBC model with quantitatively realistic … of the steady state investment rate distribution, produces investment dispersion that positively comoves with the cycle … ; cross-sectional firm dynamics ; lumpy investment ; countercyclical risk ; aggregate shocks ; idiosyncratic shocks …