Suchergebnisse

I present a model of optimal contracts between firms and workers, under limited commitment and with worker savings. In the model, firms provide insurance against unemployment through targeting a frontloaded path of wages which encourages wealth accumulation. I provide analytical results characterising the wage and savings schedules and the path of consumption during employment and unemployment. I then consider how unemployment benefits affect risk sharing through private markets. I find that benefits should be frontloaded; the government has the incentive to drive the allocation to the point where the firm's participation constraint binds. At this point wages are equal to productivity in every period, wealth exceeds the buffer stock level, and consumption and savings drop over time. The drop in the level of consumption during unemployment is mitigated. Finally, I compare the optimal contract model to the standard heterogeneous agent model whereby wealth is utilized for self-insurance purposes. I show that the two models are equivalent under the optimal UI policy.

I present a model of optimal contracts between firms and workers, under limited commitment and with worker savings. In the model, firms provide insurance against unemployment through targeting a frontloaded path of wages which encourages wealth accumulation. I provide analytical results characterising the wage and savings schedules and the path of consumption during employment and unemployment. I then consider how unemployment benefits affect risk sharing through private markets. I find that benefits should be frontloaded; the government has the incentive to drive the allocation to the point where the firm's participation constraint binds. At this point wages are equal to productivity in every period, wealth exceeds the buffer stock level, and consumption and savings drop over time. The drop in the level of consumption during unemployment is mitigated. Finally, I compare the optimal contract model to the standard heterogeneous agent model whereby wealth is utilized for self-insurance purposes. I show that the two models are equivalent under the optimal UI policy.

I present a model of optimal contracts between firms and workers, under limited commitment and with worker savings. In the model, firms provide insurance against unemployment through targeting a frontloaded path of wages which encourages wealth accumulation. I provide analytical results characterising the wage and savings schedules and the path of consumption during employment and unemployment. I then consider how unemployment benefits affect risk sharing through private markets. I find that benefits should be frontloaded; the government has the incentive to drive the allocation to the point where the firm's participation constraint binds. At this point wages are equal to productivity in every period, wealth exceeds the buffer stock level, and consumption and savings drop over time. The drop in the level of consumption during unemployment is mitigated. Finally, I compare the optimal contract model to the standard heterogeneous agent model whereby wealth is utilized for self-insurance purposes. I show that the two models are equivalent under the optimal UI policy.

I present a model of optimal contracts between firms and workers, under limited commitment and with worker savings. In the model, firms provide insurance against unemployment through targeting a frontloaded path of wages which encourages wealth accumulation. I provide analytical results characterising the wage and savings schedules and the path of consumption during employment and unemployment. I then consider how unemployment benefits affect risk sharing through private markets. I find that benefits should be frontloaded; the government has the incentive to drive the allocation to the point where the firm's participation constraint binds. At this point wages are equal to productivity in every period, wealth exceeds the buffer stock level, and consumption and savings drop over time. The drop in the level of consumption during unemployment is mitigated. Finally, I compare the optimal contract model to the standard heterogeneous agent model whereby wealth is utilized for self-insurance purposes. I show that the two models are equivalent under the optimal UI policy.

We document that the added worker effect (AWE) has increased over the last three decades. We develop a search model with two earner households and we illustrate that the increase in the AWE from the 1980s to the 2000s can be explained through i) the narrowing of the gender pay gap, ii) changes in the frictions in the labor market and iii) changes in the labor force participation costs of married women.

We study optimal debt management in the face of shocks that can precipitate the economy into a liquidity trap and call for an increase in public spending in order to mitigate the resulting recession. Our approach follows the sizable literature of macroeconomic models of debt management, which we extend to the case where the zero lower bound on the short-term interest rate binds. We wish to identify the conditions under which removing long debt from the secondary market can become an optimal policy outcome. We show that the optimal debt-management strategy is to issue short-term debt if the government faces a sizable exogenous increase in public spending and if its initial liability is not very large. In this case, our results run against the standard prescription of the debt-management literature. Finally, we show that when the government sets optimally the level of public spending, the optimality of long-term debt is restored.

We study optimal debt management in the face of shocks that can precipitate the economy into a liquidity trap and call for an increase in public spending in order to mitigate the resulting recession. Our approach follows the sizable literature of macroeconomic models of debt management, which we extend to the case where the zero lower bound on the short-term interest rate binds. We wish to identify the conditions under which removing long debt from the secondary market can become an optimal policy outcome. We show that the optimal debt-management strategy is to issue short-term debt if the government faces a sizable exogenous increase in public spending and if its initial liability is not very large. In this case, our results run against the standard prescription of the debt-management literature. Finally, we show that when the government sets optimally the level of public spending, the optimality of long-term debt is restored.

In the fiscal theory of the price level, inflation and debt dynamics are determined jointly. We derive optimal monetary policy rules that can approximate the Ramsey outcome in this environment. When the government issues a portfolio of bonds of different maturities and buys it back every period the optimal interest rate response to inflation is a simple, transparent function of the average debt maturity. This policy exploits the maturity structure to minimize the intertemporal variability of inflation in response to fiscal shocks. We then turn to the more realistic scenario of a government that does not repurchase and reissue debt in every period. In the case where debt is only long term, the optimal policy equilibrium features oscillations in inflation and simple interest rate rules may lead to explosive inflation dynamics. Issuing both short and long bonds rules out oscillations and implies that simple inflation targeting rules can approximate the Ramsey outcome. Under no repurchases a flat maturity structure of debt is optimal to reduce inflation variability.

In the fiscal theory of the price level, inflation and debt dynamics are determined jointly. We derive optimal monetary policy rules that can approximate the Ramsey outcome in this environment. When the government issues a portfolio of bonds of different maturities and buys it back every period the optimal interest rate response to inflation is a simple, transparent function of the average debt maturity. This policy exploits the maturity structure to minimize the intertemporal variability of inflation in response to fiscal shocks. We then turn to the more realistic scenario of a government that does not repurchase and reissue debt in every period. In the case where debt is only long term, the optimal policy equilibrium features oscillations in inflation and simple interest rate rules may lead to explosive inflation dynamics. Issuing both short and long bonds rules out oscillations and implies that simple inflation targeting rules can approximate the Ramsey outcome. Under no repurchases a flat maturity structure of debt is optimal to reduce inflation variability.

We study the impact of debt maturity management in an economy where monetary policy is 'passive' and subservient to fiscal policy. We setup a tractable model, to characterize analytically the dynamics of in ation, as well as other macroeconomic variables, showing their dependence on the monetary policy rule and on the maturity of debt. Debt maturity becomes a key variable when the monetary authority reacts to in ation and the appropriate maturity of debt can restore the efficacy of monetary policy in controlling in ation. This requires debt management to focus on issuing long bonds. Moreover, we propose a novel framework of Ramsey optimal coordinated debt and monetary policies, to derive analytically the interest rate rule followed by the monetary authority as a function of debt maturity. The optimal policy model leads to the same prescription, long term debt financing enables to stabilize in ation. Lastly, the relevance of debt maturity in reducing in ation variability is also confirmed in a medium scale DSGE model estimated with US data.

We study the impact of debt maturity management in an economy where monetary policy is 'passive' and subservient to fiscal policy. We setup a tractable model, to characterize analytically the dynamics of inflation, as well as other macroeconomic variables, showing their dependence on the monetary policy rule and on the maturity of debt. Debt maturity becomes a key variable when the monetary authority reacts to inflation and the appropriate maturity of debt can restore the efficacy of monetary policy in controlling inflation. This requires debt management to focus on issuing long bonds. Moreover, we propose a novel framework of Ramsey optimal coordinated debt and monetary policies, to derive analytically the interest rate rule followed by the monetary authority as a function of debt maturity. The optimal policy model leads to the same prescription, long term debt financing enables to stabilize inflation. Lastly, the relevance of debt maturity in reducing inflation variability is also confirmed in a medium scale DSGE model estimated with US data.