Working papers results

2015 - n° 81
In the last few years, the UK has adopted a fiercely competitive business tax policy by reducing the general tax burden on business and expanding individual regimes targeted to mobile factors: CFC rules, interest deductibility rules, and the Patent Box have made the UK very attractive for internationally mobile capital and profits. As the same time, the UK has strongly supported the OECD BEPS project aimed at reducing multinationals’ tax avoidance and, hence, we argue, at eliminating or constraining forms of tax competition among countries based on individual regimes targeted to mobile capital and profits. We claim that, especially in the implementation phase of the BEPS recommendations, there will be tensions between the UK competitiveness agenda and its support for the BEPS. Such tensions will be reconciled by shifting the UK tax competition policy from a mix of rate-based plus individual regimes policy to more of a rate-based approach. In this scenario, the government will have to tighten some specific measures aimed at attracting highly mobile capital and profits, such as the patent box regime and possibly interest deductions. At the same time, it will reduce the tax burden on both mobile and less mobile activities by implementing economy-wide cuts, allowed under BEPS. Most likely, such cuts would come from a further reduction in the headline corporate tax rate and the cuts announced in the July 2015 Budget should be interpreted in this light. Cuts in the headline rate essentially reduce the taxation on profits but they do not take account of the fact that for other decisions such as investment in tangible assets and information and communications technology, other elements of the tax code, such as capital allowances, are more important. To foster real investment, the government could consider an increase in capital allowances. Another option would be the introduction of an Allowance for Corporate Equity (ACE). The interesting feature of the ACE in the context of BEPS is that it reduces the incentive to classify financing instruments as tax-advantaged debt.
Richard Collier, Giorgia Maffini
Keywords: Corporate income tax; BEPS; tax avoidance; international taxation,UK
2015 - n° 80
Discrimination in access to public services can act as a major obstacle towards addressing racial inequality. We examine whether racial discrimination exists in access to a wide spectrum of public services in the US. We carry out an email correspondence study in which we pose simple queries to more than 19,000 local public service providers. We find that emails are less likely to receive a response if signed by a black-sounding name compared to a white-sounding name. Given a response rate of 72% for white senders, emails from putatively black senders are almost 4 percentage points less likely to receive an answer. We also find that responses to queries coming from black names are less likely to have a cordial tone. Further tests suggest that the differential in the likelihood of answering is due to animus towards blacks rather than inferring socioeconomic status from race.
Corrado Giulietti, Mirco Tonin, Michael Vlassopoulos
Keywords: discrimination,public services provision,school districts,libraries,sheriffs,field experiment,correspondence study
2015 - n° 77
ABSTRACT In this paper we allude to a novel role played by the non-linear income tax system in the presence of adverse selection in the labor market due to asymmetric information between workers and firms. We show that an appropriate choice of the tax schedule enables the government to affect the wage distribution by controlling the transmission of information in the labor market. This represents an additional channel through which the government can foster the pursuit of its redistributive goals.
Spencer Bastani, Tomer Blumkin, Luca Micheletto
Keywords: adverse selection,labor market,optimal taxation,pooling,redistribution
2015 - n° 76
ABSTRACT This paper examines how companies’ capital structure is affected by the corporate income tax system. Our analysis employs confidential company-level corporation tax return data in the UK. Our main identification strategy is based on variation in companies␣ marginal tax rates due to the existence of kinks in the corporate tax rate schedule. Using a dynamic adjustment model of capital structure, we find a positive and substantial long-run tax effect on companies' financial leverage. We show that there are considerable discrepancies between estimates of taxable profits reported in tax return data and in financial statements and that the estimated tax effect on capital structure using financial statements is likely to be biased downward. We find that companies adjust their capital structures gradually in response to changes in the marginal tax rate. Moreover, we find that the external leverage of domestic stand-alone companies and of multinational companies responds strongly to corporate tax incentives
Michael P. Devereux, Giorgia Maffini, Jing Xing
Keywords: corporate taxation,capital structure,tax returns
2015 - n° 74
ABSTRACT This paper reassesses the relationship between tax structure and long run income, using as indicators of tax structure both a new series of implicit tax rates based on Mendoza et al. (1997) and tax ratios, adopting a dynamic panel estimation strategy, and explicitly accounting for cross-section dependence in the panel. When implicit tax rates are used, the paper shows, the link between tax structure and long run income per capita is not robust to the adoption of different assumptions on observable and unobservable heterogeneity across countries. When tax ratios are used, there is some evidence of a negative impact of labour taxation on long run income, but this result is shown to capture non-fiscal effects coming from the evolution of the labour share. Turning to the short run, the research presented here finds strong evidence of a positive effect on per capita income of a tax shift from labour and capital taxation towards consumption taxation, which provides support for fiscal devaluations.
Giampaolo Arachi, Valeria Bucci, Alessandra Casarico
Keywords: long run income,tax structure,fiscal devaluation,cross-section dependence
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