This paper analyses the theoretical and policy implications of assuming firm-specific lumpy investment behaviour by firms and compares such implications to those occurring when adopting different investment specifications in a new-Keynesian framework. We develop numerical simulations of the...

While high uncertainty is an inherent implication of the economy entering the zero lower bound, deflation is not, because agents are likely to be uncertain about the way policymakers will deal with the large stock of debt arising from a severe recession. We draw this conclusion based on a...

This paper examines the effects of labor-replacing capital, which we call robots, on business cycle dynamics using a New Keynesian model with a role for both traditional and robot capital. We find that shocks to the price of robots have effects on output, employment, wages, and labor's share of...

This paper uses a nonlinear vector autoregression and a non-recursive identiÖcation strategy to show that an equal-sized uncertainty shock generates a larger contraction in real activity when growth is low (as in recessions) than when growth is high (as in expansions). An estimated New...