Optimal Fiscal Policy with Consumption Taxation

We characterize optimal fiscal policies in a general equilibrium model with monopolistic competition and endogenous public spending. The government can tax consumption, as alternative to labor income taxes. Consumption taxation acts as indirect taxation of profits (intratemporal gains of taxing consumption) and enables the policymaker to manage the burden of public debt more efficiently (intertemporal gains of taxing consumption). We show analytically that these two gains imply that the optimal share of government spending is higher under consumption taxation than with labor income taxation. Then, we quantify numerically each of these gains by calibrating the model on the U.S. economy.     

Uncertainty and the neutrality of government financing policy

Some ideas from the theory of finance are applied to consider whether debt-financed tax cuts affect desired consumption. It is shown that government financing policy is a matter of indifference to infinitely-lived households, if a perfect substitute for public debt exists. The analysis allows for uncertainty about future taxes, and for missing markets in some kinds of assets. Income redistribution risk, and the public insurance aspects of an income tax scheme, qualify this neutrality result, but in general the net effect is ambiguous. The real resource costs of financial transacting, as well as government superiority in the intermediation process, may be one rationale for activist debt-management policy. A better understanding of functioning capital markets is essential to evaluate these arguments.     

The Heterogeneous Responses of Consumption between Poor and Rich to Government Spending Shocks

Government spending shocks have substantially different effects on consumers across the income distribution: consumption increases for the poor whereas it decreases for the rich in response to a rise in government expenditure. I shed light on this issue by incorporating a progressive tax scheme and productive public expenditure into a heterogeneous agent model economy with indivisible labor. The model economy is able to successfully match aggregate and disaggregate effects of government spending shocks on consumption. When the government increases its spending and accompanies it by a rise in tax progressivity, the poor are employed and increase their consumption since after‐tax wage rates increase while the rich decrease their consumption because of a fall in after‐tax wage rates.     

财政改革要与经济发展同步——“十四五”时期中国财政前瞻与2021积极财政政策解读

我国“十四五”时期财政收入基础和税源分布将发生持续性的重大变化,经济增长的有利因素包括居民收入增加、消费扩大、服务业上升、数字经济成长等,但风险因素更加不容忽视,财政将面临收入增长减速、支出需要增加、债务进一步扩张的多重压力,可持续性将明显承压。本文指出财税体制的改革速度亟待与经济发展的趋势与速度同步,提出财政可持续的若干建议,并就2021年财政政策进行解读。     

Fiscal Stimulus in Times of High Debt: Reconsidering Multipliers and Twin Deficits

We investigate the impact of fiscal stimuli at different levels of the government debt‐to‐GDP ratio for a sample of 17 European countries from 1970 to 2010. This is implemented in an interacted panel VAR framework in which all coefficient parameters are allowed to change continuously with the debt‐to‐GDP ratio. We find that responses to government spending shocks exhibit strong nonlinear behavior. While the overall cumulative effect of a spending shock on real GDP is positive and significant at moderate debt‐to‐GDP ratios, this effect turns negative as the ratio increases. The total cumulative effect on the trade balance as a share of GDP is negative at first but switches sign at higher levels of debt. Consequently, depending on the degree of public indebtedness, our results accommodate long‐run fiscal multipliers that are greater and smaller than one or even negative as well as twin deficit and twin divergence behavior within one sample and time period. From a policy perspective, these results lend additional support to increased prudence at high public debt ratios because the effectiveness of fiscal stimuli to boost economic activity or resolve external imbalances may not be guaranteed.     

Taxation and the optimal constraint on corporate debt finance: why a comprehensive business income tax is suboptimal

The tax bias in favour of debt finance under the corporate income tax means that corporate debt ratios exceed the socially optimal level. This creates a rationale for a general thin capitalization rule limiting the amount of debt that qualifies for interest deductibility. This paper sets up a model of corporate finance and investment in a small open economy to identify the optimal constraint on tax-favoured debt finance, assuming that a given amount of revenue has to be raised from the corporate income tax. For plausible parameter values, the socially optimal debt-asset ratio is 2–3% points below the average corporate debt level currently observed. Driving the actual debt ratio down to this level through limitations on interest deductibility would generate a total welfare gain of about 5% of corporate tax revenue. The welfare gain would arise mainly from a fall in the social risks associated with corporate investment, but also from the cut in the corporate tax rate made possible by a broader corporate tax base.     

Tax reforms and the capital structure of banks

This paper studies the link between corporate income tax (CIT) reforms and domestic banks’ financing decisions. We use a dataset of CIT reforms and estimate the effect of tax rate changes on leverage, dividend policies and earnings management of banks. The results suggest that taxation influences all three variables. Leverage increases with the CIT rate in the first three years after the reform. The reason is that the statutory CIT rate determines the value of the debt tax shield. A higher tax rate increases incentives to use debt finance when interest payments are deductible from the CIT base. The tax effects we find are statistically and economically significant but considerably lower than those found in previous research. Also, dividend pay-outs increase after an increase in CIT rates. This could indicate that banks actively manage their pay-out policies around tax reforms and adjust their capital structure with changes in dividends. Furthermore, banks increase loss loan reserves in anticipation of tax rate cuts since losses become less valuable with lower CIT rates.     

防控“新冠肺炎”疫情的财税政策研究

突如其来的“新冠肺炎”疫情对我国宏观经济的平稳运行特别是对中小企业的经营以及就业都会产生较大的影响。在这场防控疫情的斗争中,财政税收政策将发挥重要的作用,但无论是减税还是增支都将会加大财政的赤字率。在2020年这个特殊时期,国家可以考虑突破3%的财政赤字率,但从长期来看,未来也不应该搞结构性赤字,因为这将导致巨大的政府债务。为了应对疫情,国家应当在加大宏观政策调节的力度、加大对公共卫生领域的投入、缓解企业经营困难以及实施好就业优先政策方面出台相应的财税政策。     

Fiscal hedging with nominal assets

We analyze optimal fiscal and monetary policy in an economy with distortionary labor income taxes, nominal rigidities, nominal debt of various maturities and short-selling constraints. Optimal policy prescribes the almost exclusive use of long term debt. Such debt mitigates the distortions associated with hedging fiscal shocks by allowing the government to allocate them efficiently across states and periods.     

Fiscal policy and external adjustment: New evidence

Relatively little empirical evidence exists about countries' external adjustment to changes in fiscal policy and, in particular, to changes in taxes. This paper addresses this question by measuring the effects of tax and government spending shocks on the current account and the real exchange rate in a sample of four industrialized countries. Our analysis is based on a structural vector autoregression in which the interaction of fiscal variables and macroeconomic aggregates is left unrestricted. Identification is instead achieved by exploiting the conditional heteroscedasticity of the structural disturbances. Three main findings emerge: (i) the data provide little support for the twin-deficit hypothesis, (ii) the estimated effects of unexpected tax cuts are generally inconsistent with the predictions of standard economic models, except for the US, and (iii) the puzzling real depreciation triggered by an expansionary public spending shock is substantially larger in magnitude than predicted by traditional identification approaches.     

Taxes,Inflation and Corporate Financial Policy

This paper examines inflation-induced distortions in personal and corporate income taxes and discusses the implications for corporate dividend and financial structure policies and for shareholder unanimity. The tax effects relating to capital gains and debt interest cause changes in aggregate corporate borrowing and lead to equilibrium tax relationships which differ from the zero-inflation tax relationships.     

Unemployment,Government Spending and the Laffer Effect*

The paper studies the effects of income tax rate changes in a general equilibrium model with frictional unemployment. Laffer curve effects, by which a tax rate reduction may increase the level of government spending or its share in output, are shown to be possible under certain conditions. These are the presence of unemployment benefit payments, government budget balance through fiscal spending adjustment and limited quantitative importance of labour reallocation costs. Endogenous government spending acts as a fiscal accelerator if the fiscal burden of unemployment benefit payments is large, but reduces the employment effects of tax rate cuts if it is low.     

The Costs of Restrictive Trade Policies in the Presence of Factor Tax Distortions

This paper uses a numerical general equilibrium model to examine the quantitative importance of pre-existing factor tax distortions for the welfare effects of tariffs and import quotas. The presence of pre-existing taxes can greatly raise the costs of these policies, possibly by over several hundred percent. For a tariff much of this extra cost can be offset if tariff revenues are used to reduce distortionary taxes. Hence there can be a large cost discrepancy between tariffs and quotas. The optimal tariff for a country with market power in trade can be reduced to zero, unless revenues finance cuts in distortionary taxes.     

Estimating the Tax Advantage of Corporate Debt

This paper presents estimates of the effective tax value of incremental interest deductions for corporations taking into account that they may not be able to utilize all their interest deductions fully because of either insufficient taxable income or the availability of nondebt tax shields. After describing particular features of the tax code which may drive a wedge between statutory and effective tax rates for debt finance, we present estimates using the Treasury Corporate Tax Model of effective tax rates for a variety of industry groupings. Our estimates suggest that the after-tax cost of debt varies widely across industries.     

Nominal versus indexed debt: A quantitative horse race

The main arguments in favor and against nominal and indexed debts are the incentive to default through inflation versus hedging against unforeseen shocks. We model and calibrate these arguments to assess their quantitative importance. We use a dynamic equilibrium model with tax distortion, government outlays uncertainty, and contingent-debt service. Our framework also recognizes that contingent debt can be associated with incentive problems and lack of commitment. Thus, the benefits of unexpected inflation are tempered by higher interest rates. We obtain that costs from inflation more than offset the benefits from reducing tax distortions. We further discuss sustainability of nominal debt in developing (volatile) countries.     

Financial literacy and its consequences: Evidence from Russia during the financial crisis

The ability of consumers to make informed financial decisions improves their ability to develop sound personal finance. This paper uses a panel data set from Russia, an economy in which household debt has grown at an astounding rate, to examine the importance of financial literacy and its effects on behavior. The paper studies both the financial and real consequences of financial illiteracy. Even though consumer borrowing increased very rapidly in Russia, only 41% of respondents demonstrate an understanding of interest compounding and only 46% can answer a simple question about inflation. Financial literacy is positively related to participation in financial markets and negatively related to the use of informal sources of borrowing. Moreover, individuals with higher financial literacy are significantly less likely to report experiencing a negative income shock during 2009 and have greater availability of unspent income and higher spending capacity. The relationship between financial literacy and availability of unspent income is higher in 2009, suggesting that financial literacy may better equip individuals to deal with macroeconomic shocks.     

Optimal fiscal and monetary policy with sticky prices

In this paper I consider the role of state-contingent inflation as a fiscal shock absorber in an economy with nominal rigidities. I study the Ramsey equilibrium in a monetary model with distortionary taxation, nominal non-state-contingent debt, and sticky prices. With sticky prices, the Ramsey planner must balance the shock absorbing benefits of state-contingent inflation against the associated resource misallocation costs. For government spending processes resembling post-war experience, introducing sticky prices generates striking departures in optimal policy from the case with flexible prices. For even small degrees of price rigidity, optimal policy displays very little volatility in inflation. Tax rates display greater volatility compared to the model with flexible prices. With sticky prices, tax rates and real government debt exhibit behavior similar to a random walk. For government spending processes resembling periods of intermittent war and peace, optimal policy displays extreme inflation volatility even when the degree of price rigidity is large. As the variability in government spending increases, smoothing tax distortions across states of nature becomes increasingly important, and the shock absorber role of inflation is accentuated.     

Fiscal policy with banks and financial frictions

We assess the role of banks to the transmission of optimal and exogenous changes in fiscal policy to the economy. We built-up a dynamic stochastic general equilibrium model with patient and impatient agents, banks and a government to find that banks and their associated capital-adequacy constraint mitigate the negative spill-over effects to the economy from higher taxes. Specifically, we confirm that labour income tax is the most distortionary fiscal instrument. The optimal choice of a housing tax is the most favorable funding source to a temporary increase in public spending. The combination of housing and labour taxes is the most preferred tax bundle to be optimally chosen under negative output shocks. Moreover, a permanent increase in housing tax is beneficial if it is welfare enhancing and the existence of banks benefits mainly impatient households under permanently higher consumption taxes. Finally, these results remain robust to various robustness checks.     

Flexible Spending Accounts as Insurance

We model flexible spending accounts (FSAs) as a special type of insurance policy. We prove the following results given losses drawn from a continuous distribution: (1) the optimal election amount, F^*, is increasing in the consumer's level of risk aversion; (2) F^* is increasing in the level of the maximum loss; If utility is decreasing in absolute risk aversion (DARA), then F^* is (3) decreasing in income and (4) increasing in the marginal tax rate.     

Dynamic Effects of Extending the 2001 and 2003 Income Tax Cuts

This paper focuses on the impact of permanently extending most of the provisions in EGTRRA and JGTRRA, coupled with potential legislative changes to the AMT, on the federal deficit, the distribution of after-tax income, and economic growth. The paper shows that including moderate behavioral responses offsets 16 percent of the static revenue loss estimate from 2005 to 2014. In addition, including behavioral responses implies that the percentage change in after-tax income from permanently extending the 2001 and 2003 income tax cuts would be largest for taxpayers with incomes ranging from $20,000 to $40,000. Finally, the simulation results suggest that extending the 2001 and 2003 income tax cuts and reducing the growth rate of government spending (excluding Social Security and Medicare), assuming that government expenditures are cut to avoid dramatic increases in government consumption relative to GDP in comparison to historical norms, would increase investment, employment, and output. However, postponing the implementation of tight spending controls would more than offset the positive benefits of lower tax rates on the size of the economy and leave future generations with fewer resources for private consumption and production.JEL Code: E62, H20, H30, H60The views expressed are those of the author and do not reflect those of the Baker Institute for Public Policy or any other organization. This paper was partially written while the author was employed by the Joint Committee on Taxation.