Equilibrium unemployment, job flows and inflation dynamics

In order to explain the joint fluctuations of output, inflation and the labor market, this paper first develops a general equilibrium model that integrates a theory of equilibrium unemployment into a monetary model with nominal price rigidities. Then, it estimates a set of structural parameters characterizing the dynamics of the labor market using an application of the minimum distance estimation. The estimated model can explain the cyclical behavior of employment, hours per worker, job creation and job destruction conditional on a shock to monetary policy. Moreover, allowing for variation of the labor input at the extensive margin leads to a significantly lower elasticity of marginal costs with respect to output. This helps to explain the sluggishness of inflation and the persistence of output after a monetary policy shock. The ability of the model to account for the joint dynamics of output and inflation rely on its ability to explain the dynamics in the labor market. JEL Classification: E32, J41, J64, E52, E31business cycles, inflation, monetary policy, Search and Matching Models

Unemployment fluctuations with staggered Nash bargaining

A number of authors have recently emphasized that the conventional model of unemployment dynamics due to Mortensen and Pissarides has difficulty accounting for the relatively volatile behavior of labor market activity over the business cycle. We address this issue by modifying the MP framework to allow for staggered multiperiod wage contracting. What emerges is a tractable relation for wage dynamics that is a natural generalization of the period-by-period Nash bargaining outcome in the conventional formulation. An interesting side-product is the emergence of spillover effects of average wages on the bargaining process. We then show that a reasonable calibration of the model can account well for the cyclical behavior of wages and labor market activity observed in the data. The spillover effects turn out to be important in this respect. JEL Classification: E32, E50, J6

Unemployment Fluctuation with Staggered Nash Wage Bargaining

A number of authors have recently emphasized that the conventional model of unemployment dynamics due to Mortensen and Pissarides has difficulty accounting for the relatively volatile behavior of labor market activity over the business cycle. We address this issue by modifying the MP framework to allow for staggered multiperiod wage contracting. What emerges is a tractable relation for wage dynamics that is a natural generalization of the period-by-period Nash bargaining outcome in the conventional formulation. An interesting side-product is the emergence of spillover effects of average wages on the bargaining process. We then show that a reasonable calibration of the model can account well for the cyclical behavior of wages and labor market activity observed in the data. The spillover effects turn out to be important in this respect.Unemployment, Labor Market, Nash Bargaining, Wage Rigidity

Unemployment Fluctuations With Staggered Nash Wage Bargaining

A number of authors have recently emphasized that the conventional model of unemployment dynamics due to Mortensen and Pissarides has difficulty accounting for the relatively volatile behavior of labor market activity over the business cycle. We address this issue by modifying the MP framework to allow for staggered multiperiod wage contracting. What emerges is a tractable relation for wage dynamics that is a natural generalization of the period-by-period Nash bargaining outcome in the conventional formulation. An interesting side-product is the emergence of spillover effects of average wages on the bargaining process. We then show that a reasonable calibration of the model can account well for the cyclical behavior of wages and labor market activity observed in the data. The spillover effects turn out to be important in this respect.

Taxes and the Labor Market

We estimate the effect of exogenous changes in taxes on the US unemployment rate and on several other labor market variables. Our estimates are based on a revised version of the Romer and Romer (2010) narrative record of exogenous tax innovations, with the additional benefit of distinguishing between capital income and labor income taxes. We first show that accounting for the difference between automatic and discretionary tax changes in the revised specification is crucial in order to obtain an unbiased measure of the tax multipliers. We then obtain the following main results. An increase in tax receipts of one percent of GDP has a sizeable positive impact on the unemployment rate, and a negative impact on hours worked, labor market tightness and job finding probability. The effect on GDP is also sizeable, but somewhat in the mid range of other values found in the literature, due to the fact that we account for the difference between discretionary and automatic changes in tax revenues. The effect on the unemployment rate of variations in business taxes is larger than that of personal income taxes. We suggest that the latter result poses interesting challenges for future research.

Unemployment fluctuation with staggered Nash wage bargaining

A number of authors have recently emphasized that the conventional model of unemployment dynamics due to Mortensen and Pissarides has difficulty accounting for the relatively volatile behavior of labor market activity over the business cycle. We address this issue by modifying the MP framework to allow for staggered multiperiod wage contracting. What emerges is a tractable relation for wage dynamics that is a natural generalization of the period-by-period Nash bargaining outcome in the conventional formulation. An interesting side-product is the emergence of spillover effects of average wages on the bargaining process. We then show that a reasonable calibration of the model can account well for the cyclical behavior of wages and labor market activity observed in the data. The spillover effects turn out to be important in this respect

Unemployment Fiscal Multipliers

We estimate the effects of fiscal policy on the labor market in US data. An increase in government spending of 1 percent of GDP generates output and unemployment multipliers respectively of about 1.2 per cent (at one year) and 0.6 percentage points (at the peak). Each percentage point increase in GDP produces an increase in employment of about 1.3 million jobs. Total hours, employment and the job finding probability all rise, whereas the separation rate falls. A standard neoclassical model augmented with search and matching frictions in the labor market largely fails in reproducing the size of the output multiplier whereas it can produce a realistic unemployment multiplier but only under a special parameterization. Extending the model to strengthen the complementarity in preferences, to include unemployment benefits, real wage rigidity and/or debt financing with distortionary taxation only worsens the picture. New Keynesian features only marginally magnify the size of the multipliers. When complementarity is coupled with price stickiness, however, the magnification effect can be large.

Financial Markets and Unemployment

We study the importance of financial markets for (un)employment fluctuations in a model with searching and matching frictions where firms issue debt under limited enforcement. Higher debt allows employers to bargain lower wages which in turn increases the incentive to create jobs. The transmission mechanism of 'credit shocks' is fundamentally different from the typical credit channel and the model can explain why firms cut hiring after a credit contraction even if they have not shortage of funds for hiring workers. The theoretical predictions are consistent with the estimation of a structural VAR whose identifying restrictions are derived from the theoretical model.