The welfare effect of income tax deductions for losses as insurance: Insured- versus insurer-sided adverse selection

Kaplow (1992) shows in a complete-information environment that allowing income tax deductions for losses as partial insurance is undesirable in the presence of private insurance markets. This paper elaborates on Kaplow's finding by studying two extreme types of asymmetric information structures in private insurance markets: Either the insured or insurers possess superior information. It is shown that our derived result is consistent with Kaplow's if the insured have superior information; however, Kaplow's negative conclusion with respect to the income tax deduction will be overturned if insurers have superior information instead. A policy implication from our finding is that whether or not to allow an income tax deduction for losses needs to be more refined and, specifically, it should be tailored to the “adverse selection” information structures of private insurance.     

The optimal linear income tax revisited

This paper shows that the Mirrlees-Seade conditions of agent monotonicity and noninferiority of leisure imply the positivity of the optimal marginal income tax rate in Sheshinski's model of linear income taxation as well as in the general model. The optimal marginal tax rate is bounded above by the Rawlsian rate, which in turn is bounded by the revenue-maximizing rate. The optimal marginal tax rate may be arbitrarily close to the Rawlsian rate. However, the optimal marginal tax rate is bounded away from the revenue-maximizing rate whenever the individual with the lowest ability works.     

Income tax progressivity and revenue growth

Musgrave and Musgrave's average rate progression is shown to be a measure of the progressivity of an income tax schedule from which useful propositions about the built-in flexibility and elasticity of total revenue can be obtained.     

Income tax policy and lifetime labor supply

A progressive income tax structure provides incentives for individuals to alter their rate of work and their age of retirement. Compared to a zero tax or proportional tax equilibrium, progressive taxation induces individuals to take less leisure in the form of retirement in exchange for more leisure during the worklife, especially at high wage levels. The imposition of a special pension tax provision on top of a progressive tax structure offsets the distortion on leisure alternatives imposed by progressivity. Indeed, the pension tax deferral provision can neutralize the impact of tax progressivity on the work profile over life. The magnitude of these tax inducements in the U.S. tax structure are non-trivial and therefore are expected to alter labor supply decisions over the lifetime. The model finds empirical support using data from the Social Security Newly Entitled Beneficiaries Survey.     

Depreciation and interest deductions and the effect of the corporation income tax on investment

In this paper, we examine the effect of the corporation income tax on the investment decision of the firm particularly with respect to the role of interest and depreciation deductions in determining the neutrality of the tax. We demonstrate the need for introducing a constraint on corporate borrowing before a meaningful analysis of the firm's behaviour under certainty is possible. The effect of a given tax and deduction scheme on the firm's investment decision is found to depend on the form of this constraint. We then relate our results to that of earlier authors and indicate some problems with their analyses.     

Efficiency losses from tax distortions vs. government control

Given the strong theoretical presumption that state enterprises are less efficient than private enterprises, why have countries often chosen state ownership? This paper explores the hypothesis that high tax rates can distort the decisions of private enterprises by enough that state ownership becomes preferable on efficiency grounds. The forecast is that state ownership should be seen primarily in settings with high (explicit or implicit) tax distortions to private behavior.     

企业统计制度改革的误区及其思考

企业统计是企业统计人员收集、汇总企业生产经营过程中的有关数据和情报，进行整理之后提供给各级领导，使领导掌握企业的生产和经营的具体情况，作为下步的调度和决策依据。本文主要分析目前我国企业在统计制度改革过程中存在的一些误区，提出自己的建议。     

The life insurance market: Asymmetric information revisited

This paper finds evidence for the presence of asymmetric information in the life insurance market, a conclusion contrasting with the existing literature. In particular, we find a significant and positive correlation between the decision to purchase life insurance and subsequent mortality, conditional on risk classification. Individuals who died within a 12-year time window after a base year were 19% more likely to have taken up life insurance in that base year than were those who survived the time window. Moreover, as might be expected when individuals have residual private information, we find that the earlier an individual died, the more likely she was to have initially bought insurance. The primary factor driving the difference between our and the prior literature's findings is that we focus on a sample of potential new buyers, rather than on the entire cross section, to address the sample selection problem induced by potential mortality differences between those with and those without coverage.     

Depreciation and interest deductions and the effect of the corporation income tax on investment: A comment

When all jobs are full time and workers cannot substitute alternative jobs, the skills of workers are observable. Nevertheless, the optimum may involve a benefit for those who choose not to work (making their skills unobservable). When the tax structure and benefit for nonworkers are chosen to maximize welfare, they tradeoff the social marginal utility of consumption against the needed incentive to work. In contrast to more conventional models, the optimal tax schedule may have discontinuities and may involve subsidization of the work of low earners.     

浅析美国个人所得税实体法律制度

作为世界上最发达的国家之一,美国的个人所得税制度十分精细、成熟和完善.通过对美国个人所得税实体法律制度的分析,以期对中国目前的个人所得税法律制度的改革和重构提供一些启示.     

中国人人所得税制度变迁变化

旧中国个人所得税制度因诸多原因没有推行开来,新中国个人所得税制度的变迁经济体制决定的,1994年个人所税税制再次面临迫切的制度创新,在市场经济条件下,个人所得税成为主体税种已是不可避免的选择,政府应按着未来主体税种的方面推动改革。     

Income insurance and the determinants of income insurance via foreign asset revenues and foreign liability payments

We document that the net factor income smoothing channel in OECD countries is primarily driven by net financial asset income, while the other two sub‐components (net compensation of employees and net taxes on imports) turn out to be ineffective. Once factor income inflows are distinguished from outflows, empirical evidence suggests a non-significant effect of inflows in terms of income smoothing as opposed to a positive and significant role of factor income outflows. Factor income outflows also appear to be robust with respect to positive output shocks, while neither factor inflows nor factor outflows provide insurance against negative output shocks. In terms of the determinants of income smoothing, results indicate that an increase in foreign equity and debt liabilities positively affect the extent of smoothing via factor income outflows. Whereas, contrary to the current literature, an increase in foreign asset holding does not have a positive impact on smoothing via factor income inflows. European investors' tendency of allocating a sizeable portion of their assets within the Euro zone is shown to undermine income smoothing.     

Disability insurance and environmental tax policy in a zero net emissions society

This study aims to show the importance of disability insurance from an environmental policy perspective. Within the framework of an overlapping generations model, we derive the emissions tax rate required to achieve zero net pollution. Our model implies that the emissions tax rate is always lower in the presence of disability insurance than it is in the absence of disability insurance. The results suggest that disability insurance can be used as an instrument for increasing gross domestic product performance when the government implements a zero net emissions policy.     

Disability insurance and unemployment insurance as substitute pathways

In this article, we estimate the degree of substitution between enrolment into Disability Insurance (DI) and Unemployment Insurance (UI) in the Netherlands. Starting in the 1990s many policy measures aimed at reducing DI enrolment, and increase labour force participation. We quantify whether these policy measures have led to a reduction in hidden unemployment in DI. A side effect of the reforms may be increased pressure on UI. Therefore, we simultaneously estimate reverse substitution, that is, hidden disability in UI. To this end, we employ a sample of firms in the Dutch AVO database from the period 1993 to 2002. Using instrumental variables in a bivariate Tobit specification, we identify the hidden components in both respective schemes. The estimation results indicate that about 3% of all dismissals took place through DI, which implies that about one quarter of the DI enrolments observed in our sample in fact consists of hidden unemployment. We find no evidence for reverse substitution of disabled persons ending up in UI.     

Income inequality and economic growth—the Kuznets curve revisited

In a neoclassical growth framework with a typical political-economy mechanism, this paper reexamines the relationship between the income inequality and economic growth by introducing government spending into the production function and the utility function. It demonstrates that Kuznets’ famous inverted-U shape relationship between inequality and economic growth will hold—the growth rate will be first increasing with the income inequality before the growth rate decreases with inequality. __________ Translated from The Journal of World Economy (世界经济), 2005,(5) (in Chinese)     

Income distribution and tax structure: Empirical test of the Meltzer-Richard hypothesis

The Meltzer-Richard hypothesis that more unequal income distribution will create a majority for more redistribution has generated much research, but little empirical support. The empirical literature has concentrated on cross-country studies and the size of the public sector, and the results broadly do not indicate more redistribution with more inequality. This analysis suggests that the hypothesis should be investigated in a more homogenous setting with comparable institutions and with an explicit decision about redistribution (here tax structure). New data on poll tax and property tax in decentralized government in Norway are exploited. We show how the multi-dimensional decision can be analyzed as majority rule assuming intermediate preferences. In the econometric analysis, instruments are used to account for endogeneity of income level and income distribution. The estimated model supports the understanding that more unequal income distribution implies a shift in the tax burden from poll tax to property taxes and thereby gives more redistribution.     

Income distribution and equilibrium multiplicity in a stigma-based model of tax evasion

This paper incorporates continuous income distribution into the stigma-based model of tax compliance. The paper investigates the effect of income distribution on the existence of multiple equilibria, and characterizes the conditions under which multiple equilibria emerge. Precisely, multiple equilibria exist if taxpayer incomes are sufficiently homogeneous, because the ‘social coordination effect’ dominates the ‘individual characteristics effect’. Numerical simulations show that the main proposition is robust to allowing two-step audit policies on the part of the tax agency, under the presumption that the best (or good) equilibrium is selected whenever there are multiple equilibria. As a byproduct, the effect of various forms of tax reforms on the optimal two-step audit policy, the equilibrium compliance, and fiscal revenue is analyzed.     

Income tax incidence in a developing country: The case of Greece

The objective of this study is to throw some light on the question of direct tax incidence in a developing country like Greece. A two-sector model is built up which emphasises a number of duality aspects. In that respect the model deviates from the standard Harberger type models. Appropriate shifting formulas are then constructed. Making use of a set of plausible parameter values our findings suggest that the taxed input may avoid some portion of the tax burden even under a perfectly competitive environment.