Tax enforcement and tax havens under formula apportionment

In this paper, we consider optimal tax enforcement policy in the presence of profit shifting toward tax havens. We show that, under separate accounting, tax enforcement levels may be too high due to negative fiscal externalities. In contrast, under formula apportionment, tax enforcement is likely to be too low due to positive externalities of tax enforcement. Our results challenge recent contributions arguing that, under formula apportionment, there is a tendency toward inefficiently high levels of (effective) tax rates.     

Fiscal equalisation schemes under competition

This paper considers optimal fiscal equalisation in a federation that competes with other federations for business tax base. It formalises the argument that, under certain circumstances, federations have an incentive to foster tax competition among their subunits in order to attract tax base from other federations. We show that optimal fiscal equalisation serves the purpose of redistributing income from rich to poor subunits and of choosing an optimal level of tax competition. The latter is chosen as a trade-off between three goals. First, decentralised tax rate setting has positive fiscal externalities within the federation and, thus, tax rates are inefficiently low. Second, in the presence of hold-up problems in investment, tax rates may be inefficiently high. Then, tax competition serves as a commitment device for low future tax rates and is, thus, welfare enhancing. Third, generous fiscal equalisation within the federation is a commitment to not aggressively compete with subunits outside the federation for tax base; as a consequence, with optimal equalisation, equilibrium tax rates are higher within and outside the federation—and even higher than in the case of centralised (i.e. federal level) tax rate setting.     

Strategic Environmental Policy and International Trade in Asymmetric Oligopoly Markets

This paper examines optimal cooperative and non-cooperative environmental taxes for the case in which a polluting input is used to produce an internationally-traded finished product. The model allows for terms-of-trade effects under oligopoly and employs a general specification of the environmental damage function that encompasses special cases of local, global, and transboundary externalities. The model has several implications for public finance. For example, inefficiently high environmental taxes may be optimal for a net exporting country in non-cooperative circumstances, as the motive to shift rent by selecting an inefficiently low tax rate is countervailed by the incentive to shift the burden of the tax to foreign consumers. The findings identify the important role of asymmetric trade flows (denominated in both goods and pollution exchange) in determining optimal cooperative and non-cooperative tax policy under oligopoly.     

Tax competition and fiscal equalization under corporate income taxation

This paper challenges the view that tax base equalization by the so-called representative tax system (RTS) removes inefficient undertaxation in corporate tax competition. The innovation of the paper is that it focuses on a tax on corporate income, instead of the unit tax on capital considered in previous studies. We employ a tax competition model with fiscal equalization and show that the RTS fails to fully internalize pecuniary and fiscal externalities. As a consequence, the RTS yields inefficiently low tax rates in the Nash equilibrium of the tax competition game between governments. Tax revenue equalization performs even worse, but combined with equalization of private income it implements the efficient tax rates on corporate income.     

Tourism, globalization, social externalities, and domestic welfare

One of the impacts of globalisation has been the growth in tourism and mobility of capital. This paper examines the welfare effect of tourism on the host economy with imperfect competition. Three channels that affects domestic welfare by tourism are: social externalities accompanied with tourists, the terms of trade effect via rises in the non-tradable prices, and the resource movement effect to the manufacturing sector. Owing to the positive terms-of-trade effect and/or the beneficial resource movement effect, the optimal levels of tourism occur at the situations that tourists bring negative social externalities to the economy.     

Common labor market,attachment and spillovers in a large metropolis

In this paper, we extend the home-attachment model to a setting with multiple (more than two) jurisdictions and consider non-cooperative policy making for provision of different types of metropolitan public goods in the presence of a common labor market. Migration and working place choices are independent. We show that the optimal redistributive policy implemented by a central authority always yields equalization of private consumption levels across jurisdictions. This result holds whether or not policy makers are able to anticipate migration responses to their policy choices. In the decentralized leadership games, jurisdictions make choices that fully internalize externalities.     

An optimal auction with identity‐dependent externalities

We analyze the problem of a seller of multiple identical units of a good who faces a set of buyers with unit demands, private information, and identity‐dependent externalities. We derive the seller's optimal mechanism and characterize its main properties. We show that the probability that a buyer obtains a unit is an increasing function of the externalities he generates and enjoys. Also, the seller's allocation of the units of the good need not be ex post efficient. As an illustration, we apply the model to the problem faced by a developer of a shopping mall who wants to allocate and price its retail space among anchor and non‐anchor stores. We show that a commonly used sequential mechanism is not optimal unless externalities are large enough.     

Peer R&D disclosure and corporate innovation: Evidence from American depositary receipt firms

In this paper, we examine the effect of peer research and development (R&D) disclosures on corporate innovation. R&D disclosures can generate externalities for related firms, enabling those firms to better infer a project's likely payoffs and thus prioritize projects with higher net present values. We use a sample of foreign firms cross-listed on U.S. exchanges to investigate whether U.S. peer firms experience externalities from the cross-listing firm's R&D disclosures. We find that R&D disclosures by cross-listing firms are associated with greater innovation for industry peers in the U.S. market, especially when product market competition is high. The effect also varies with the home country's legal protection systems, disclosure environments, and accounting reporting rules. Cross-sectional analyses indicate that the externalities are more pronounced in industries or firms that rely more on external financing and firms subject to higher financial constraints; disclosures of higher quality appear to promote innovation by ameliorating financing frictions. Overall, this study provides evidence of R&D disclosure as an industry-wide determinant of innovation, thereby contributing to literature on the real effects of peer disclosures.     

Optimal Bank Transparency

Increasing transparency is recurrently offered as a centerpiece of bank regulation. We study a competitive banking sector whose illiquid assets are funded by short‐term debt that must be refinanced. We show that welfare is a nonmonotonic function of the level of transparency: Increasing transparency fosters efficient liquidation but has an adverse effect on rollover risk given the level of risk. Banks may compensate this adverse effect by taking more risk. These offsetting effects render an intermediate level of transparency optimal. Moreover, the existence of negative social externalities of bank failures calls for making banks more opaque rather than more transparent.     

International tax competition: do public good spillovers matter?

We study the impact of public good spillovers on tax competition between two imperfectly integrated countries with different levels of productivity. We show that international public good spillovers, by reducing the tax gap between countries, strengthen the agglomeration of firms in the most productive country. Then we carry on a welfare analysis. We first assume that governments are engaged in a redistributive tax policy. At the non-cooperative equilibrium, the tax level in the high-productivity country is inefficiently high while it is inefficiently low in the other country. A different conclusion emerges when tax revenues are recycled in a public good provision: taxes are inefficiently low in both countries and public good spillovers increase the global welfare. Finally, for a given amount of total tax revenues, public good provision in the high-productivity country is inefficiently high compared to its level in the low-productivity country.     

Liquidity provision,interest rates,and unemployment

The effective liquidity supply of the economy—the weighted-sum of all assets that serve as media of exchange—matters for interest rates and unemployment. We formalize this idea by adding an over-the-counter market with collateralized trades to the Mortensen–Pissarides model. An increase in public liquidity through a higher supply of real government bonds raises the real interest rate, crowding out private liquidity and increasing unemployment. If unemployment is inefficiently high, keeping liquidity scarce can be socially optimal. A liquidity crisis affecting the acceptability of private assets as collateral widens the rate-of-return difference between private and public liquidity, also increasing unemployment.     

Anticipating transitions beyond the current mobility regimes: How acceptability matters

Today's car-based transportation systems require a transition toward sustainability. This is particularly the case in suburban areas, where the costs for introducing a new transportation system are high due to the low population density. At the same time the negative externalities of the current mobility regime – such as health costs and congestions – are increasing rapidly. Based on expert interviews with car manufacturers, transportation authorities, environmental groups, and scientists we identify two visionary characteristics of future, more sustainable transportation systems: automated driving and sharing. Using these two characteristics, we apply the scenario-axes technique to develop four mobility scenarios for a suburban context that range from business-as-usual to a radical and more sustainable one. In an evaluation with ten criteria that measure a scenario's performance from a user perspective, the radical scenario performs worst since it does not meet current individualistic user requirements. Our findings suggest that lock-ins of users’ expectations act as barriers for the diffusion of novel transportation systems. These barriers cannot be overcome by technological innovations and regulation alone. Hence, we call for innovative arenas, wherein technology and user acceptability could co-evolve.     

The Downside of Asset Screening for Market Liquidity

This paper explores the tension between asset quality and market liquidity. I model an originator who screens assets whose cash flows are later sold in secondary markets. Screening improves asset quality but gives rise to asymmetric information, hindering trade of the asset cash flows. In the optimal mechanism (second‐best), costly retention of cash flows is essential to implement asset screening. Market allocations can feature too much or too little screening relative to second‐best, where too much screening generates inefficiently illiquid markets. Furthermore, the economy is prone to multiple equilibria. The optimal mechanism is decentralized with two tools: retention rules and transfers.     

Incentive Effects of Assigned Goals and Compensation Schemes on Budgetary Performance

This study examines the combined effects of two management interventions, assigned goals and monetary compensation, on performance in a routine task. It investigates the effects of assigned goals (four goal levels: low, medium, high, impossible) and three types of compensation scheme (fixed-pay, piece-rate and budget-based). A laboratory experiment involving 180 undergraduate accounting students showed that, in some circumstances, assigned goals dominated performance effects while, in other circumstances, monetary incentives played a major role. Over medium to high levels of difficulty, assigned goals had a positive and dominating effect on performance, regardless of type of compensation. When the assigned goal was low, however, performance-contingent pay schemes had an additive effect on performance, while at an impossible goal level, budget-based incentives had a negative effect on performance. Of the interventions tested, the highest performance resulted from using incentive-based compensation when the budget (assigned goal) was relatively low (80% achievable).     

Education policy and tax competition with imperfect student and labor mobility

This paper analyzes the effect of increasing human-capital mobility—i.e. student and labor mobility—on net tax revenues when revenue-maximizing governments compete for human capital by means of income tax rates and amenities offered to students (positive expenditure) or rather tuition fees (negative expenditure). An increase in labor mobility implies neither an intensified tax competition nor an erosion of revenues. In fact, the equilibrium tax rate even increases in labor mobility. Amenities offered to students are non-monotonically related to labor mobility; overall, net revenues increase with labor mobility. An increase in student mobility, however, erodes revenues, mainly due to intensified tax competition. A concurrent cutback in expenditures mitigates this erosion but cannot fully prevent it.     

The effect of audit market structure on audit quality and audit pricing in the private-client market

This study examines whether audit market structure affects audit quality and audit pricing. We analyze two conceptually distinct dimensions of market structure: audit market concentration and client mobility. Focusing on the private-client segment of the Belgian audit market, we compare the pricing and quality effects of market structure between the segment of small and medium-sized (SME) clients and the segment of large clients to test how audit complexity moderates such effects. We find that market concentration impairs price and quality competition in the SME-client segment. Market concentration is unrelated to audit quality in the large-client segment, where we argue that concentration is endogenous to audit complexity. Furthermore, we find that client mobility stimulates price competition in both segments but improves audit quality only in the large-client segment. We interpret our findings as evidence that (a) audit market concentration impairs competition especially when audits have low complexity and that (b) the large-client market segment, characterized by higher audit complexity and higher market concentration, can also be price and quality competitive if clients are sufficiently mobile, and change auditors relatively frequently.     

Two Extensive Margins of Credit and Loan‐to‐Value Policies

We analyze a model of mortgage markets, housing tenure choice, heterogeneous agents, and default with closed form solutions. We uncover new insights which may inspire empirical work, and we ground already established insights in a series of tractable expressions. Then we study optimal loan‐to‐value (LTV) regulation and show that the choice of an LTV cap should balance the opposing forces of access to homeownership and the negative externalities associated with default. Homeownership affordability concerns induce procyclical elements into optimal regulation which attenuate the countercyclical regulation justified by the negative default externalities.     

Exemption vs. Credit Method in International Double Taxation Treaties

This paper examines the choice of international double taxation relief methods by two small countries that mutually exchange foreign direct investment. At the first stage, each country chooses between the exemption and the credit method (as prescribed by the OECD model treaty) and at the second stage, each country sets nationally optimal non-discriminatory capital tax rates. It is shown that in the subgame perfect equilibrium both countries choose the exemption method. Mutual application of the exemption method is also shown to yield the highest welfare for each country. While the tax export effect generally induces both countries to choose inefficiently high tax rates, this effect is weakest when both countries exempt foreign earned profits from domestic taxation.     

Securitization,Ratings, and Credit Supply

We develop a framework to explore the effect of credit ratings on loan origination. We show that ratings endogenously shift the economy from a signaling equilibrium, in which banks inefficiently retain loans to signal quality, toward an originate-to-distribute equilibrium with zero retention and inefficiently low lending standards. Ratings increase overall efficiency, provided that the reduction in costly retention more than compensates for the origination of some negative net present value loans. We study how banks' ability to screen loans affects these predictions and use the model to analyze commonly proposed policies such as mandatory “skin in the game.”     

CEO mobility and corporate payouts

We examine how chief executive officer (CEO) mobility affects corporate payouts. We exploit US state courts’ staggered adoption of the inevitable disclosure doctrine (IDD) to obtain exogenous variation in mobility. We report several findings. First, we find that firms in IDD-adopting states increase dividend payouts, whereas the effect of IDD on share repurchases is insignificant relative to firms not in IDD-adopting states. Second, the increase in dividends is concentrated on firms run by CEOs having high ability. Third, CEOs increasing dividends are less likely to be forced to leave their jobs. Fourth, the increase in dividends is concentrated on firms run by early-career CEOs rather than retiring CEOs. Last, CEOs increasing dividends receive more favorable shareholders’ say on pay votes for higher pay. Our evidence supports the notion that restricted mobility induces CEOs to choose a dividend policy that enhances their positions with their shareholders.