Search Results
Working Paper
A New Way to Quantify the Effect of Uncertainty
This paper develops a new way to quantify the effect of uncertainty and other higher-order moments. First, we estimate a nonlinear model using Bayesian methods with data on uncertainty, in addition to common macro time series. This key step allows us to decompose the exogenous and endogenous sources of uncertainty, calculate the effect of volatility following the cost of business cycles literature, and generate data-driven policy functions for any higherorder moment. Second, we use the Euler equation to analytically decompose consumption into several terms--expected consumption, the ex-ante ...
Working Paper
The Business Cycle Mechanics of Search and Matching Models
This paper estimates a real business cycle model with unemployment driven by shocks to labor productivity and the job separation rate. We make two contributions. First, we develop a new identification scheme based on the matching elasticity that allows the model to perfectly match a range of labor market moments, including the volatilities of unemployment and vacancies. Second, we use our model to revisit the importance of shocks to the job separation rate and highlight how their correlation with labor productivity affects their transmission mechanism.
Working Paper
Complementarity and Macroeconomic Uncertainty
Macroeconomic uncertainty—the conditional volatility of the unforecastable component of a future value of a time series—shows considerable variation in the data. A typical assumption in business cycle models is that production is Cobb-Douglas. Under that assumption, this paper shows there is usually little, if any, endogenous variation in output uncertainty, and first moment shocks have similar effects in all states of the economy. When the model departs from Cobb-Douglas production and assumes capital and labor are gross complements, first-moment shocks have state-dependent effects and ...
Working Paper
The stimulative effect of forward guidance
This paper examines the stimulative effect of central bank forward guidance?the promise to keep future policy rates lower than its policy rule suggests?when the short-term nominal interest rate is stuck at its zero lower bound (ZLB).We utilize a standard New Keynesian model in which forward guidance enters our model as news shocks to the monetary policy rule. Three key findings emerge: (1) Forward guidance is more stimulative at the ZLB when households believe the economic recovery will be strong. When households expect a weak recovery or initially have low confidence in the economy, forward ...
Working Paper
Forward guidance and the state of the economy
This paper examines forward guidance using a nonlinear New Keynesian model with a zero lower bound (ZLB) constraint on the nominal interest rate. Forward guidance is modeled with news shocks to the monetary policy rule. The effectiveness of forward guidance depends on the state of the economy, the speed of the recovery, the ZLB constraint, the degree of uncertainty, the monetary response to inflation, the size of the news shocks, and the forward guidance horizon. Specifically, the stimulus from forward guidance falls as the economy deteriorates or as households expect a slower recovery. When ...
Entry, Exit of Firms Amplify the Business Cycle
When new businesses are created, they generate new jobs. When unprofitable businesses close, employees lose their jobs. Given the connection between firm entry and exit and changes in employment, it is natural to ask how this entry and exit affects the broader business cycle.
Journal Article
Fed’s Effective Lower Bound Constraint on Monetary Policy Created Uncertainty
Uncertainty about the economy increased when the Fed reduced the federal funds rate to its effective lower bound because the constraint restricted the Fed?s ability to stabilize the economy. As a result, a much stronger negative relationship between uncertainty and economic activity emerged during and shortly after the Great Recession.
Working Paper
Entry and Exit, Unemployment, and Macroeconomic Tail Risk
This paper builds a nonlinear business cycle model with endogenous firm entry and exit and equilibrium unemployment. The entry and exit mechanism generates asymmetry and amplifies the transmission of productivity shocks, exposing the economy to significant tail risk. When calibrating the rates of entry and exit to match their shares of job creation and destruction, our quantitative model generates higher-order moments consistent with U.S. data. Firm exit particularly amplifies the severity and persistence of deep recessions such as the COVID-19 crisis. In the absence of entry and exit, the ...
Working Paper
The Matching Function and Nonlinear Business Cycles
The Cobb-Douglas matching function is ubiquitous in search and matching models, even though it imposes a constant matching elasticity that is unlikely to hold empirically. Using a general constant returns to scale matching function, this paper first derives analytical conditions that determine how the cyclicality of the matching elasticity amplifies or dampens the nonlinear dynamics of the job finding and unemployment rates. It then demonstrates that these effects are quantitatively significant and driven by plausible variation in the matching elasticity.
Working Paper
Uncertainty Shocks in a Model of Effective Demand: Comment
Basu and Bundick (2017) show a second moment intertemporal preference shock creates meaningful declines in output in a sticky price model with Epstein and Zin (1991) preferences. The result, however, rests on the way they model the shock. If a preference shock is included in Epstein-Zin preferences, the distributional weights on current and future utility must sum to 1, otherwise it creates an asymptote in the response to the shock with unit intertemporal elasticity of substitution. When we change the preferences so the weights sum to 1, the asymptote disappears as well as their main ...