Imperfect competition,indirect tax harmonization and public goods

This paper shows that the welfare implications of indirect tax harmonization in a two-country imperfectly competitive framework, are, in general, indeterminate in the presence of public goods: Both countries can be made either worse off or better off. This holds under both the destination and origin principles of taxation and is in sharp contrast to existing results where revenue effects are not present. A consequence of this indeterminacy is that a precise evaluation of tax-harmonizing policies under both tax regimes requires an explicit consideration of the underlying preferences for private and public goods as well as the oligopolistic sectors’ relative cost structures. JEL code F15⋅ H21⋅ H41⋅ H87     

Tax treatment of dividends and capital gains and the dividend decision under dual income tax

The paper analyses efficiency aspects of a dual income tax system with a higher tax on capital gains than dividends. It argues that apart from the distortions to investments claimed in earlier literature, the system puts even more emphasis in creating incentives for entrepreneurs to participate in tax planning. The paper suggests that the owner of a closely held company can avoid all personal taxes on entrepreneurial income by two tax-planning strategies. The first is the avoidance of distributions, which would be taxed at the tax rate on labour income. These funds would instead be invested in the financial markets. The second strategy is a distribute and call-back policy, converting retained profits into new equity capital. Interestingly, the outcome is that investment in real capital is not distorted in the long-run equilibrium. Empirical evidence using microdata is also provided.      

Quantifying and sustaining welfare gains from monetary commitment

Our objectives are: to quantify the stabilization welfare gains from commitment; to examine how commitment to an optimal rule can be sustained as an equilibrium; to find a simple interest rate rule that approximates the optimal commitment one. We utilize an empirical micro-founded euro-area DSGE model, a quadratic approximation of household utility as the welfare criterion, employing a nominal interest rate lower bound. In contrast to previous studies, we find significant commitment stabilization gains of around a 0.4-0.5% equivalent permanent consumption increase, and with higher price stickiness gains over 2%. We find that a simple optimized commitment rule responding to inflation and the real wage mimics the optimal one.     

The effects of standardized tax rates,average tax rates,and the distribution of income on tax progressivity

This study examines the changes in US individual income tax progressivity over the 1986–2003 period using the indexes developed by [Kakwani, N.C., 1976. Measurement of tax progressivity: An international comparison. Economic Journal 87(March), 71–80]. Although progressivity over this time frame has generally been studied in the literature, we provide additional insights by decomposing the changes in index values to account for the effects of concurrent changes in the standardized tax rates, average tax rates, and the income distribution. The decomposition should prove to be particularly useful when different summary indexes lead to conflicting conclusions about progressivity changes, as is often the case. From a policy standpoint, we show that it is the standardized tax rates, a derivative of the legislated tax rates, which need to be monitored and managed to offset the negative progressivity effects of increasing before-tax income inequality.     

Global Trends and Issues in Value Added Taxation

Since the late 1960s, the VAT has become one of the mainstays of the tax systems in over one hundred countries. Apparently, its revenue raising and neutrality properties make it an attractive tax in a rapidly integrating, high-tax world. Following an overview of VATs throughout the world, this article examines various VAT structure and policy issues under the following headings: tax coverage features, tax base aspects, hard-to-tax sectors, rate structure issues, and interjurisdictional coordination problems. It is shown that the normative requirements of a good VAT are often met only in the breach.     

Corporate tax reforms and tax-motivated profit shifting: evidence from the EU

This paper examines whether the profit-shifting trend in Europe during 2003–2013 can be explained by tax policy changes. Consistent with prior literature, we find that affiliates’ profits are sensitive to tax rate changes. However, we document that tax base–broadening reforms have mitigated the incentives for both inward and outward profit shifting. In particular, we find that anti-avoidance rules prevent multinational companies from shifting profits out of their foreign affiliates, whereas other tax base–broadening rules, such as restrictions on the deductibility of tax losses or on group tax relief, reduce the incentives for multinational companies to shift profits into foreign affiliates. Furthermore, we find evidence of a downward trend in profit shifting across European countries, especially when the tax enforcement is stricter. Overall, these results suggest that broader tax bases and stricter tax enforcement have successfully curbed this particular tax strategy.     

Determinants of the variability in corporate effective tax rates and tax reform: Evidence from Australia

This study examines the determinants of the variability in corporate effective tax rates in Australia spanning the Ralph Review of Business Taxation reform. Our results indicate that corporate effective tax rates are associated with several major firm-specific characteristics, including firm size, capital structure (leverage) and asset mix (capital intensity, inventory intensity and R&D intensity). While the Ralph Review tax reform had a significant impact on many of these associations, corporate effective tax rates continue to be associated with firm size, capital structure and asset mix after the tax reform.     

税制结构演变的国际经验与中国展望

税制结构的演变受到经济因素、政府政策目标、国家和社会关系的影响和约束,具有普遍的规律性。考察世界各国税制结构的演变历程可以发现,发达国家税制结构和税种结构均比较稳定,直接税占比高但税种分散,货物与劳务税仍为最大的单一税种;发展中国家税制结构相对稳定但税种结构呈趋势性变化,个人所得税和企业所得税均稳中有升。个人所得税和社会保障缴款是国家间税制结构差异的主要来源,企业所得税负担的国际竞争面临深刻变化。当前我国已基本形成了双主体税制结构,直接税收入中所得类税收、企业主体税收占比较高。鉴于此,我国应在强化均贫富、促消费的目标下,提高个人所得税比重、完善财产税制度、加强自然人税源管理;在新经济增长模式下,对增值税进行适应性调整和税负优化。     

Simplifying the personal income tax system: lessons from the 1998 Spanish reform

Governments often try to reduce the complexity of personal income tax systems by decreasing the number of tax filings. The 1998 reform of the Spanish income tax system has followed this approach by adjusting withholding on earned income to the income tax liability. In this paper, we assess to what extent the reform has fulfilled its purposes, making use of a micro‐simulation tax‐benefit model for Spain, ESPASIM. The number of individuals exempt from filing a tax return has been reduced to around half of the total number of taxpayers. However, the quantity of tax returns sent to the tax administration has not changed so much because the new withholding system adjusts taxes for only 29 per cent of those exempt. Moreover, the new system increases the overall excess of tax withholding by 1.5 billion euro. We also study alternative reforms that could achieve better results than the one implemented.     

Value relevance of international accounting standards harmonization: Evidence from A- and B-share markets in China

Applying both the price-levels model and the lagged-price-deflated returns model, we investigated the incremental value relevance of the reconciliation of accounts from the Chinese Accounting Standards (CAS) to the International Accounting Standards (IAS) by those Chinese listed companies that have simultaneously issued A-shares and B-shares. In addition, we examined the usefulness of accounting numbers (earnings and book values) and their value relevance to the A- and B-share markets in China. The study finds that earnings and book values of owners’ equity determined under CAS are more relevant accounting information for the purpose of determining the prices of A- and B-shares. The CAS-based earnings changes were reflected in stock returns in the B-share market, while the CAS-based earnings were closely associated with stock returns in the A-share market. However, the study found that the reconciliation of earnings and book values from CAS to IAS basis is partially value-relevant, mainly to stock prices in the B-share market, while the earnings reconciliation is generally not value-added to stock returns in either the A- or the B-share market. The study results suggest that accounting numbers based on domestic accounting standards, in contrast to IAS, are more value-relevant in the Chinese stock market at present.     

Tax Competition and Tax Coordination in the European Union

This paper examines the tax competition literature and attempts to draw out its implications for the debate on corporate tax coordination within the EU. It begins with the early basic tax competition model, which derives conditions under which underprovision of public services occurs and tax harmonization unambiguously improves welfare for all states in the union. The paper then turns to a wide variety of extensions of this model, some of which reinforce its results and others that yield rather different conclusions. The analysis concludes by considering the implications of the tax competition literature for the debate on EU corporate tax coordination, drawing on some recent efforts to synthesize this vast literature by estimating the efficiency costs of tax competition and simulating the efficiency gains from various tax coordination palns.     

Corporate tax policy and incorporation in the EU

In Europe, declining corporate tax rates have come along with rising tax-to-GDP ratios. This paper explores to what extent income shifting from the personal to the corporate tax base can explain these diverging developments. We exploit a panel of European data on legal form of business to analyze income shifting via incorporation. The results suggest that the effect is significant and large. It implies that the revenue effects of lower corporate tax rates—possibly induced by tax competition—will partly show up in lower personal tax revenues rather than lower corporate tax revenues. Simulations suggest that between 12% and 21% of corporate tax revenue can be attributed to income shifting. Income shifting is found to have raised the corporate tax-to-GDP ratio by some 0.25% points since the early 1990s. This research was carried out while Ruud de Mooij was a visiting fellow at DG ECFIN in October 2006. The views expressed in this Article are those of the authors and do not necessarily reflect the official position of the European Commission.     

我国应对数字服务税的内在困境与破解之道

实体经济向数字经济的转换,突破了传统税收征管实体联结度规则“壁垒”.税法领域的相关法律缺失,已不能有效解决数字经济时代线上线下税收不公的法律问题.面对数字服务领域的税收问题,世界各国采取的办法或是开征数字服务税,或是修改国内法律,又或是等待国际统一规则的制定.开征数字税的国家在纳税起征条件、税率、征税对象、“安全港”条...     

Capital gains tax,supply‐driven trading and ownership structure: direct evidence of the lock‐in effect

This study investigates the effect of differential capital gains tax rates on investor trading and share prices in a unique market setting that facilitates the resolution of conflicting prior evidence of holding period tax incentives. In particular, we examine whether the concessionary tax treatment of long‐term capital gains increases the supply of shares that qualify for long‐term status, thereby causing downward price pressure. We find evidence of abnormal seller‐initiated trading following the 12‐month anniversary of listing for IPO firms that appreciate in price (‘winners’) and report no such evidence for firms that decline in price (‘losers’). Consistent with the tax concessions being greater for individual than institutional investors, we report that abnormal seller‐initiated trading is mitigated by higher levels of ownership by institutional investors. We also report limited evidence, for winners, of declining share prices upon qualifying for long‐term tax status.     

Incentives for corporate tax planning and reporting: Empirical evidence from Australia

This study extends prior research on the willingness of firms to significantly decrease their corporate taxes. It specifically examines the associations between corporate tax avoidance and the reported significant uncertainty of a firm’s tax position, the tax expertise and tax affiliations of its directors, and the performance-based remuneration incentives of its key management personnel. Based on a dataset of 200 publicly listed Australian firms over the 2006–2010 period (1000 firm years), we find that the reported uncertainty of a firm’s tax position, the tax expertise of its directors, and the performance-based remuneration incentives of its key management personnel are significantly positively associated with tax avoidance. Conversely, firms with board members who have at least one tax-related affiliation are significantly negatively associated with tax avoidance.     

Capital gains tax and the capital asset pricing model

This paper develops a version of the Capital Asset Pricing Model that views dividend imputation as affecting company tax and assumes differential taxation of capital gains and ordinary income. These taxation issues aside, the model otherwise rests on the standard assumptions including full segmentation of national capital markets. It also treats dividend policy as exogenously determined. Estimates of the cost of equity based on this model are then compared with estimates based on the version of the CAPM typically applied in Australia, which differs only in assuming equality of the tax rates on capital gains and ordinary income. The differences between the estimates can be material. In particular, with a high dividend yield, allowance for differential taxation can result in an increase of two to three percentage points in the estimated cost of equity. The overall result obtained here carries over to a dividend equilibrium, in which firms choose a dividend policy that is optimal relative to the assumed tax structure.     

The valuation of projects under the dividend imputation tax system

This paper proves that a modified weighted average cost of capital (“WACC”) valuation methodology is a rigorous and practicable method of valuing projects and companies under the Australian dividend imputation tax system. This methodology uses an effective tax rate in calculating both the discount rate and the ungeared after tax cash flow. A cash flow after effective corporate tax is shown to be equivalent to a cash plus value of imputation credit stream. Importantly, this valuation methodology is applicable to returns that are non-uniform and of finite duration. Also examined is the discounting of equity returns at the company's cost of equity capital. A worked example is presented to clarify and quantify the effects discussed.     

The impact of the French Tobin tax

We analyze the impact of the introduction of the French Tobin tax on the turnover and measures of the liquidity and volatility of the affected stocks with nonparametric tests on individual stocks, difference-in-difference tests and other robustness checks controlling for simultaneous month-of-the-year and size effects. Our findings indicate that the tax produces a significant reduction in turnover and volatility (measured in terms of stock price volatility and the high–low price range) and inconclusive effects on liquidity when the latter is evaluated under the two dimensions of the estimated bid–ask spread and the Amihud (2002) price impact ratio.     

The stock market effects of a securities transaction tax: Quasi-experimental evidence from Italy

In the aftermath of the financial crisis, in several countries new levies on the financial sector have been proposed and in some cases implemented. We focus in particular on the recent introduction of a securities transaction tax (STT) in Italy. A peculiarity of the Italian STT is that it only concerns stocks of corporations with a market capitalization above € 500 million. We exploit this feature via a differences-in-differences approach – comparing taxed and non-taxed stocks before and after the introduction of the tax – and via a regression discontinuity design – comparing the performance of stocks just above the threshold with those just below. Focusing on the regulated market, we find that the new tax reduced liquidity, but it left transaction volumes and returns substantially unaffected. There is also evidence – although not conclusive – that the tax increased volatility.     

Indirect tax reform and the role of exemptions

This paper examines the question of whether indirect tax rates should be uniform, using four different modelling strategies. First, marginal tax reform is examined. This is concerned with the optimal direction of small changes in effective indirect tax rates and requires considerably less information than the calculation of optimal rates. Second, the welfare effects of a partial shift from the current indirect tax system in Australia towards a goods and services tax (GST) are considered, with particular emphasis on differences between household types and the role of exemptions. Third, in view of the stress on a distributional role for exemptions of certain goods from a GST, the potential limits to such redistribution are considered. The fourth approach examines the extent of horizontal inequity and reranking that can arise when there are non‐uniform tax rates. These inequities arise essentially because of preference heterogeneity.