scholarly journals QUADRATIC LABOR ADJUSTMENT COSTS, BUSINESS CYCLE DYNAMICS, AND OPTIMAL MONETARY POLICY

2012 ◽  
Vol 17 (2) ◽  
pp. 464-475 ◽  
Author(s):  
Wolfgang Lechthaler ◽  
Dennis J. Snower

We build quadratic labor adjustment costs into an otherwise standard New Keynesian model of the business cycle and show that this increases output persistence in a vein similar to that of other models of labor market frictions. Furthermore, we demonstrate the implication of quadratic labor adjustment costs for monetary policy. We show that there is a simple rule determining whether quadratic labor adjustment costs imply a trade-off between stabilizing inflation and output.

2017 ◽  
Vol 23 (1) ◽  
pp. 101-143
Author(s):  
Miguel Casares ◽  
Luca Deidda ◽  
Jose E. Galdon-Sanchez

We examine optimal monetary policy in a New Keynesian model with unemployment and financial frictions where banks produce loans using equity as collateral. Firms and households demand loans to finance externally a fraction of their flows of expenditures. Our findings show amplifying business-cycle effects of a more rigid loan production technology. In the monetary policy analysis, the optimal rule clearly outperforms a Taylor-type rule. The optimized interest-rate response to the external finance premium turns significantly negative when either banking rigidities are high or when financial shocks are the only source of business cycle fluctuations.


2020 ◽  
Vol 12 (2) ◽  
pp. 310-350 ◽  
Author(s):  
Pierpaolo Benigno ◽  
Gauti B. Eggertsson ◽  
Federica Romei

This paper proposes a postcrisis New Keynesian model that incorporates agent heterogeneity in borrowing and lending with a minimum set of assumptions. Unlike the standard framework, this model makes the natural rate of interest endogenous and dependent on macroeconomic policy. The main application is to study optimal monetary policy at the zero lower bound (ZLB). Such policy succeeds in raising the natural rate of interest by creating an environment that speeds up deleveraging and thus endogenously shortens the crisis and the duration of binding ZLB. Inflation should be front-loaded and should overshoot its long-term target during the ZLB episode. (JEL E12, E31, E32, E43, E52)


2015 ◽  
Vol 20 (6) ◽  
pp. 1504-1526 ◽  
Author(s):  
Rafael Gerke ◽  
Felix Hammermann

We use robust control to study how a central bank in an economy with imperfect interest rate pass-through conducts monetary policy if it fears that its model could be misspecified. We find that, first, whether robust optimal monetary policy under commitment responds more cautiously or more aggressively depends crucially on the source of shock. Imperfect pass-through amplifies the robust policy. Second, if the central bank is concerned about uncertainty, it dampens volatility in the inflation rate preemptively but accepts higher volatility in the output gap and loan rate. However, for highly sticky loan rates, insurance against model misspecification becomes particularly pricy. Third, if the central bank fears uncertainty only in the IS equation or the loan rate equation, the robust policy shifts its concern for stabilization away from inflation.


2019 ◽  
pp. 1-24
Author(s):  
Barbara Annicchiarico ◽  
Alessandra Pelloni

This paper examines how innovation-led growth affects optimal monetary policy. We consider the Ramsey policy in a New Keynesian model where R&D leads to an expanding variety of intermediate goods and compare the results with those obtained when the expansion occurs exogenously. Positive trend inflation is found to be optimal under both assumptions, but much higher with profit-seeking innovation. Optimal monetary policy must be counter-cyclical in response to both technology and public spending shocks, yet the intensity of the reaction crucially depends on the presence of an R&D sector. However, the small amount of short-run deviations of prices from the non-zero trend inflation observed in response to shocks suggests inflation targeting as a robust policy recommendation.


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