Sebastian Koehne

ORCID: 0000-0002-5726-2314
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About
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Research Areas
  • Fiscal Policy and Economic Growth
  • Gender, Labor, and Family Dynamics
  • Economic theories and models
  • Labor market dynamics and wage inequality
  • Corporate Taxation and Avoidance
  • Taxation and Compliance Studies
  • Financial Literacy, Pension, Retirement Analysis
  • Housing Market and Economics
  • Politics, Economics, and Education Policy
  • Economic Policies and Impacts
  • Monetary Policy and Economic Impact
  • Law, Economics, and Judicial Systems
  • Decision-Making and Behavioral Economics
  • Global Health Care Issues
  • Social Policy and Reform Studies
  • Energy, Environment, and Transportation Policies
  • Climate Change Policy and Economics
  • Financial Markets and Investment Strategies
  • Complex Systems and Time Series Analysis
  • Insurance and Financial Risk Management
  • Economic and Environmental Valuation

Stockholm University
2011-2024

Kiel University
2015-2022

Ifo Institute for Economic Research
2014-2016

Using survey experiments in the United States and Germany with 12,000 participants, we examine perceptions of life expectancy inequality between rich poor people. The is underestimated more than that rich, leading to exaggerated both countries. Receiving accurate information narrows concerns about this inequality. However, impact on policy demand limited because support for policies addressing consistently high, regardless varying We conclude there strong unconditional public health equity policies.

10.2139/ssrn.4717693 article EN SSRN Electronic Journal 2024-01-01

10.1016/j.red.2014.09.005 article EN Review of Economic Dynamics 2014-09-28

We analyze Pareto-efficient tax deduction rules for work-related expenses. Pareto efficiency dictates a strict rule marginal deductions along the income distribution. An immediate implication is recipe designing Pareto-improving reforms. apply our theory and simulate reform that introduces non-care household services (housekeeping, gardening, laundry) in United States. The combines rates between 55% 85% with slight increase rates.

10.1016/j.euroecorev.2022.104214 article EN cc-by European Economic Review 2022-07-13

10.1016/j.jpubeco.2014.12.007 article EN Journal of Public Economics 2014-12-27

Abstract This article proposes a dynamic Mirrleesian theory of commodity taxation in the presence durable goods. A uniform across all goods is suboptimal even when consumption preferences are separable from labor. If utility function strictly concave and stocks adjustable without friction, investment should be taxed at higher rate than purchase nondurable With adjustment frictions, wedge on depends substitution effects between can positive or negative. An application suggests that housing...

10.1111/iere.12289 article EN International Economic Review 2018-02-03

Several frictions restrict the government’s ability to tax assets. First, it is very costly monitor trades on international asset markets. Second, agents can resort nonobservable low-return assets such as cash, gold or foreign currencies if taxes observable become too high. This paper shows that limitations in taxation have important consequences for of labor income. Using a dynamic moral hazard model social insurance, we find optimal income less progressive when governments face taxation....

10.2139/ssrn.2550139 article EN SSRN Electronic Journal 2014-01-01

Moral hazard models with hidden saving decisions are useful to study such diverse problems as unemployment insurance, income taxation, executive compensation, or human capital policies. How can we solve models? In general, this is very difficult. Under the conditions derived in paper, however, replace incentive constraint associated first-order condition. This allows application of simple Lagrangian methods and yields a precise characterization optimal contracts. To obtain tractable for...

10.2139/ssrn.1444780 article EN SSRN Electronic Journal 2010-01-01

We study implications of habit formation for optimal taxation. First, we show that taxation problems with can be analyzed using dynamic programming techniques. Second, derive labor and savings wedges preferences. counteracts the conventional Mirrleesian distortions calls subsidies to supply savings. demonstrate theoretical results are quantitatively important: in a stylized life-cycle model, average fall by more than one third compared time-separable references. Third, exploit analogy...

10.2139/ssrn.2390600 article EN SSRN Electronic Journal 2014-01-01

10.1628/fa-2024-0012 article EN FinanzArchiv Public Finance Analysis 2024-01-01

We analyze Pareto-efficient tax breaks for personal taxation in a private information environment. In addition to labor-leisure choice, the agents decide how spend their money between consumption and work-related goods. derive an efficiency condition that relates rate of deductibility goods marginal at each income level. This holds irrespective skill distribution taste redistribution. If is violated (which it almost generically), we characterize utility-neutral incentive-compatible...

10.2139/ssrn.2877112 article EN SSRN Electronic Journal 2017-01-01

Should Unemployment Insurance Be Asset-Tested? *We study asset-tested unemployment insurance in an incomplete markets model with moral hazard during job search.Asset testing has two counteracting effects on welfare.On the one hand, it improves consumption by introducing state contingent transfers to agents most need.On other worsens problem, since workers have a reduced incentive save and fewer private resources are used for smoothing unemployment.Our results show that realistically...

10.2139/ssrn.2011791 article EN SSRN Electronic Journal 2012-01-01

We study asset-tested unemployment insurance in an incomplete markets model with moral hazard during job search. Asset testing has two counteracting effects on welfare. On the one hand, it improves consumption by introducing state contingent transfers to agents most need. other worsens problem, since workers have a reduced incentive save and fewer private resources are used for smoothing unemployment. Our results show that realistically calibrated of U.S. economy nearly offset each –...

10.2139/ssrn.2293305 article EN SSRN Electronic Journal 2013-01-01

This paper examines the first order approach to moral hazard problems in which agent can secretly save and borrow. The shows that hidden saving constrains concavity of agent's problem even for CARA utility additively separable effort disutility an important way: Consumption second period will be jointly concave if only negative consumption is log-convex effort. We derive two sets sufficient conditions validity this setup. First, we strengthen classic by Mirrlees (1979) Rogerson (1985)....

10.2139/ssrn.1481205 article EN SSRN Electronic Journal 2009-01-01

We analyze Pareto-efficient tax deduction rules for work-related expenses. Pareto efficiency dictates a strict rule marginal deductions along the income distribution. An immediate implication is recipe designing Pareto-improving reforms. apply our theory and simulate reform that introduces non-care household services (housekeeping, gardening, laundry) in United States. The combines rates between 55% 85% with slight increase rates.

10.2139/ssrn.3646851 article EN SSRN Electronic Journal 2020-01-01

We analyze Pareto-efficient tax deduction rules for work-related expenses (e.g. housekeeping services, child care or elderly care). Pareto efficiency dictates a tight rule how the rate of deductibility should vary with income and expenditures. An immediate implication is recipe designing Pareto-improving reforms. apply our theory to services in U.S.: Introducing such that between 55% (low expenses) 85% (high can be marginally deducted from taxable yields improvement if combined slight...

10.2139/ssrn.3424727 article EN SSRN Electronic Journal 2019-01-01

This paper proposes a theory of commodity taxation in the presence durable goods. Optimal taxes depend on preference nonseparabilities between and nondurable consumption. In particular, seminal Atkinson-Stigliz result fails differential are optimal even when utility function is separable labor An application to housing decisions implies that should face higher tax rates than Moreover, justifies provisions income code.

10.2139/ssrn.2560757 article EN SSRN Electronic Journal 2015-01-01
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