I study real effects of uncertainty shocks. Using time-varying volatility of the forecast error, I construct a two-part uncertainty metric that consists of persistent and volatile, burstlike components. These indices are used to study empirically several predictions of uncertainty models: that...

We develop a general equilibrium model in which heterogeneous entrepreneurs produce output in the presence of financing constraints. We model granular uncertainty as the shocks that affect the uncertainty in future idiosyncratic productivity without changing the cross-sectional dispersion of...

We distill evidence about the effects of COVID-19 on companies. Stock price reactions to the shock differed greatly across firms, depending on their resilience to social distancing, financial flexibility, and corporate culture. The same characteristics affected the response of firms' sales,...

The process of globalization encompasses economic and financial integration. The abolition of capital controls and the dismantling of barriers of different kinds will expose previously sheltered companies to shocks on the global economic arena. Policy-makers in already globalized countries have...

Using an annual panel of US states over the period 1982-2014, we estimate the response of macroeconomic variables to a shock to the number of new firms (startups). We find that these shocks have significant effects that persist for many years on real GDP, productivity, and population. This...

Using a rich dataset of Colombian manufacturing establishments, we illustrate scarring effects of recessions operating through inefficient exit induced by heterogeneous credit constraints. We show that financially constrained businesses may be forced to exit the market during recessions even if...

A recent strand of literature has investigated the granular sources of the business cycle, i.e. to what extent firm-level dynamics have an impact on aggregate fluctuations. From a conceptual point of view, in the presence of fat-tailed firm-size distributions, shocks to large firms may not...

Local labor market shocks are difficult to insure against. Using confidential micro data from the U.S. Census Bureau's Longitudinal Business Database, we document that firms redistribute the employment impacts of local demand shocks across regions through their internal networks of...

Using an annual panel of US states over the period 1982-2014, we estimate the response of macroeconomic variables to a shock to the number of new firms (startups). We find that these shocks have significant effects that persist for many years on real GDP, productivity, and population. This...

We investigate the time variation in the correlation between hours and technology shocks using a structural business cycle model. We propose an RBC model with a Constant Elasticity of Substitution (CES) production function that allows for capital- and labor-augmenting technology shocks. We...