Ruud A. de Mooij

Environmental tax reform and endogenous growth

This paper explores the effects of an environmental tax reform on pollution, economic growth and welfare in an endogenous growth model with pre-existing tax distortions. We find that a shift in the tax mix away from output towards pollution may raise economic growth through two channels. The first channel is an environmental production externality, which determines the positive effect of lower aggregate pollution on the productivity of capital. The second channel is a shift in the tax burden away from the net return on investment towards profits. The paper also shows that, if tax shifting towards profits is large and environmental amenities are unimportant, the optimal tax on pollution may exceed its Pigovian level.

Environmental Taxes, International Capital Mobility and Inefficient Tax Systems: Tax Burden vs. Tax Shifting

This paper deals with the so-called ‘double dividend’ of an environmental tax reform. In a model with only labor and a polluting input as factors of production, we find that society faces a trade-off between internalizing environmental externalities and raising revenues in the least distortionary way. However, if capital enters the production structure, an ecological tax reform may render the tax structure more efficient from a non-environmental point of view, thereby raising not only environmental quality but also private incomes.

Enhanced Cooperation in an Asymmetric Model of Tax Competition

This paper analyzes enhanced cooperation agreements in corporate taxation in a three country tax competition model where countries differ in size. We characterize equilibrium tax rates and the optimal tax responses due to the formation of an enhanced cooperation agreement. Conditions for strategic complementarity or strategic substitutability of tax rates are crucial for the welfare effects of enhanced cooperation. Simulations show that enhanced cooperation is unlikely to be feasible for small countries. When enhanced cooperation is feasible, it may hamper global harmonization. Only when countries are of similar size is global harmonization a feasible outcome.

Corporate Tax Harmonization in the EU

This paper explores the economic consequences of proposed EU reforms for a common consolidated corporate tax base. The reforms replace separate accounting with formula apportionment as a way to allocate corporate tax bases across countries. To assess the economic implications, we use a numerical computable general equilibrium (CGE) model for Europe. It encompasses several decision margins of firms such as marginal investment, FDI decisions, and multinational profit shifting. The simulations suggest that consolidation does not yield substantial welfare gains for Europe. The variation of effects across countries is large and depends on the choice of the apportionment formula. Consolidation with formula apportionment does not weaken incentives for tax competition. Tax competition instead offers a rationale for rate harmonization, in addition to base harmonization.

Endogenizing technological progress: The MESEMET Model

This paper endogenizes technology and human capital formation in the MESEM model that was developed by van Sinderen (Economic Modelling, 1993, 13, 285-300). Tax allowances for private R&D expenditures and public expenditures on both education and R& D are effective instruments to stimulate economic growth. Simulations with respect to market clearing, the importance of supply-side elements and key parameters (such as the magnitude of spillovers and substitution elasticities) reveal that tax allowances for private R & D are the most robust instrument to increase economic growth through the accumulation of knowledge. Contrary to other studies that find that technology policies typically reduce employment, we find that overall employment rises.

Corporate Tax Policy and Unemployment in Europe: An Applied General Equilibrium Analysis

This paper analyzes the impact of corporate taxes on structural unemployment, using an applied general equilibrium model for the European Union. We find that the unemployment and welfare effects of corporate taxes differ considerably among European countries. The magnitude of these effects rise in particular in the broadness of the corporate tax base of a country, and the strength of international spillover effects through foreign direct investment. The effect on unemployment is smaller if the substitution elasticity between labour and capital is large, if international spillover effects operate primarily via multinational profit shifting, and if equilibrium forces on the labour market are strong. Although the effect of corporate taxes on unemployment may be smaller than the effect of labour and value-added taxes (e.g. under relatively strong real wage resistance), the welfare costs of corporate taxation are typically larger for most European countries under plausible parameters, especially under strong international spillovers.

Environmental taxation and the double-dividend: The role of factor substitution and capital mobility

This paper deals with the so-called double-dividend of an environmental tax reform. We find that, in a model with only labor and a polluting input as factors of production, society faces a trade-off between internalizing environmental externalities and raising revenues in the least distortionary way. However, if either fixed or mobile capital enters the production structure, an ecological tax reform may render the tax structure more efficient from a non-environmental point of view, thereby raising not only environmental quality but also private incomes.

Growth and the Environment in Europe: A Guide to the Debate

Many articles on the compatibility between growth and environmental preservation provide one single view and use particular concepts. Indeed, debates between advocates and opponents of economic growth are usually unfruitful since people do not talk the same language. The aim of this paper is to provide some clarification in this debate by offering a systematic comparison of perspectives on the basis of a benchmark economic-environmental framework.Many articles on the compatibility between growth and environmental preservation provide one single view and use particular concepts. Indeed, debates between advocates and opponents of economic growth are usually unfruitful since people do not talk the same language. The aim of this paper is to provide some clarification in this debate by offering a systematic comparison of perspectives on the basis of a benchmark economic-environmental framework.

Taxation and Corporate Debt; Are Banks any Different?

This paper explores whether corporate tax bias toward debt finance differs between banks and nonbanks, using a large panel of micro data. On average, it finds that there is no significant difference. The marginal tax effect for both banks and non-banks is close to 0.2. However, the responsiveness differs considerably across the size distribution and the conditional leverage distribution. For nonbanks, we find a U-shaped relationship between asset size and tax responsiveness, although this pattern does not hold universally across the conditional leverage distribution. For banks, in contrast, the tax responsiveness declines linearly in asset size. Quantile regressions show further that capitaltight banks are significantly less responsive than are capital-abundant banks; the same pattern holds for the largest non-banks. Still, even the largest banks with high conditional leverage ratios feature a significant, positive tax response.

Welfare Effects of Different Public Expenditures and Taxes in the Netherlands

This paper explores the welfare effects of public consumption, income transfers and public investment financed through different types of taxes. One surprising result is that, contrary to public consumption goods, public capital goods do not necessarily become less attractive if distortionary taxes, rather than lump-sum taxes, are necessary to finance them. The numerical simulations reveal that the net welfare effects of public investments in the Netherlands are typically positive if financed through lump-sum taxes or distortionary taxes on labor. However, if a source-based capital tax is adopted to finance public investments, the overall welfare effect may be negative.