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Jel Classification:H21 

Working Paper
Capital Taxation with Heterogeneous Discounting and Collateralized Borrowing

We study optimal long-run capital taxation in a closed economy with heterogeneity in agents' time-discount factors where borrowing is allowed but restricted by a collateral constraint. Financial frictions distort intertemporal optimization margins and the tax system serves a dual role: first, it is used to finance government consumption; second, it serves to alleviate the distortions arising from the binding collateral constraint. The discrepancy between the private and the social discount factors pushes for a subsidy on capital, while the discrepancy introduced by the collateral constraint ...
Finance and Economics Discussion Series , Paper 2017-053

Working Paper
The Determination of Public Debt under both Aggregate and Idiosyncratic Uncertainty

We use an analytically tractable, heterogeneous-agent incomplete-markets model to show that the Ramsey planner’s decision to finance stochastic public expenditures implies a departure from tax smoothing and an endogeneous mean-reverting force to support positive debt growth despite the government’s precautionary saving motives. Specifically, the government’s attempt to balance the competing incentives between its own precautionary saving (tax smoothing) and households’ precautionary saving (individual consumption smoothing)—even at the cost of extra tax distortion—implies an ...
Working Papers , Paper 2019-038

Working Paper
Optimal time-consistent government debt maturity

The current literature on a government's optimal debt maturity structure contends that by purchasing short-term assets and selling long-term debt, it is possible to fully insulate the economy against fiscal shocks. The required short and long positions are large relative to GDP and constant. The market value of debt adjusts automatically and the constant debt positions and fluctuating bond prices insulate against potential shocks. However, achieving the goal of averting future shocks depends on the government perfectly committing to the future fiscal policy, for without this sustained ...
Working Papers , Paper 16-4

Working Paper
Time-Inconsistent Optimal Quantity of Debt

A key feature of the infinite-horizon heterogeneous-agents incomplete-markets (Inf-HAIM) framework is that the equilibrium interest rate of public debt lies below the time discount rate (regardless of capital). This happens because of a positive liquidity premium on asset returns due to imperfect risk sharing. This fundamental property of standard Inf-HAIM models, however, implies that the Ramsey planner's fiscal policy may be time-inconsistent---because the planner has a dominate incentive to issue plenty of debt such that all households are fully self-insured against idiosyncratic risk ...
Working Papers , Paper 2020-037

Working Paper
Optimal Social Insurance and Rising Labor Market Risk

This paper analyzes the optimal response of the social insurance system to a rise in labor market risk. To this end, we develop a tractable macroeconomic model with risk-free physical capital, risky human capital (labor market risk) and unobservable effort choice affecting the distribution of human capital shocks (moral hazard). We show that constrained optimal allocations are simple in the sense that they can be found by solving a static social planner problem. We further show that constrained optimal allocations are the equilibrium allocations of a market economy in which the government ...
Opportunity and Inclusive Growth Institute Working Papers , Paper 18

Working Paper
Taxing Capital? The Importance of How Human Capital is Accumulated

This paper considers the impact of how human capital is accumulated on optimal capital tax policy in a life cycle model. In particular, it compares the optimal capital tax when human capital is accumulated exogenously, endogenously through learning-by-doing, and endogenously through learning-or-doing. Previous work demonstrates that in a simple two generation life cycle model with exogenous human capital accumulation, if the utility function is separable and homothetic in each consumption and labor, then the government has no motive to condition taxes on age or tax capital. In contrast, this ...
Finance and Economics Discussion Series , Paper 2015-117

Working Paper
Optimal Taxation with Endogenous Default under Incomplete Markets

How are the optimal tax and debt policies affected if the government has the option to default on its debt? We address this question from a normative perspective in an economy with noncontingent government debt, domestic default and labor taxes. On one hand, default prevents the government from incurring future tax distortions that would come along with the service of the debt. On the other hand, default risk gives rise to endogenous credit limits that hinder the government's ability to smooth taxes. We characterize the fiscal policy and show how the option to default alters the near-unit ...
International Finance Discussion Papers , Paper 1297

Working Paper
A Quantitative Theory of Time-Consistent Unemployment Insurance

During recessions, the U.S. government substantially increases the duration of unemployment insurance (UI) benefits through multiple extensions. This paper seeks to understand the incentives driving these increases. Because of the trade-off between insurance and job search incentives, the classic time-inconsistency problem arises. During recessions, the U.S. government substantially increases the duration of unemployment insurance (UI) benefits through multiple extensions. This paper seeks to understand the incentives driving these extensions. Because of the trade-off between insurance and ...
FRB Atlanta Working Paper , Paper 2016-11

Working Paper
Designing Cash Transfers in the Presence of Children’s Human Capital Formation

This paper finds that accounting for the human capital development of children has a quantitatively large effect on the true costs and benefits of providing cash assistance to single mothers in the United States. A dynamic model of work, welfare participation, and parental investment in children introduces a framework for calculating costs and benefits when individuals respond to incentives. The model provides a tractable outcome equation in which a policy’s effect on child skills can be understood through its impact on two economic resources in the household – time and money – and the ...
Opportunity and Inclusive Growth Institute Working Papers , Paper 117

Working Paper
The Determination of Public Debt under both Aggregate and Idiosyncratic Uncertainty

We use an analytically tractable model to show that the Ramsey planner's decisions to finance stochastic public expenditures under uninsurable idiosyncratic risk implies a departure from tax smoothing. In the absence of state-contingent bonds the government's attempt to balance the competing incentives between tax smoothing and individual consumption smoothing---even at the cost of extra tax distortion---implies a bounded stochastic unit root component in optimal taxes. Nonetheless, a sufficiently high average level of public debt to support individuals’ self-insurance position is welfare ...
Working Papers , Paper 2019-038

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Chien, YiLi 41 items

Wen, Yi 36 items

Chen, Yunmin 10 items

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Karantounias, Anastasios G. 7 items

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