The equilibrium allocation of capital and equilibrium market prices are derived for a world economy with unified securities market, mobile capital, no uncertainty, and varying tax rates on different sources of income in each country. The paper then characterizes optimal tax rates for a small country in this setting, focusing on the peculiar incentives created when the before-tax rate of return differs among securities due to differences in their typical tax treatment.

Recent theoretical work has argued that a small open economy should use residence-based but not source-based taxes on capital income. Given the ease with which residents can evade domestic taxes on foreign earnings from capital, however, a residence-based tax may not be administratively feasible, leaving no taxes on capital income.

Optimal-tax theory forecasts that small open economies should not tax capital income. Yet, countries do tax capital income. Why the inconsistency? This paper shows that use of the double-taxation convention, whereby governments credit taxes paid abroad against domestic taxes, helps explain this inconsistency. In particular, capital income will be taxed if a dominant capital exporter acts as a Stackelberg leader when setting its tax policy. Due to the convention, other countries will then tax capital imports, making it attractive for the dominant capital exporter to tax capital income. Without a dominant capital exporter, however, the model still forecasts no capital-income taxes.

ABSTRACT Optimal‐tax theory forecasts that small open economies should not tax capital income. Yet, countries do tax capital income. Why the inconsistency? This paper shows that use of the double‐taxation convention, whereby governments credit taxes paid abroad against domestic taxes, helps explain this inconsistency. In particular, capital income will be taxed if a dominant capital exporter acts as a Stackelberg leader when setting its tax policy. Due to the convention, other countries will then tax capital imports, making it attractive for the dominant capital exporter to tax capital income. Without a dominant capital exporter, however, the model still forecasts no capital‐income taxes.

In the United States, local government expenditures are heavily sub- sidized through a variety of sources. This paper explores theoretically and then simulates empirically the effects of eliminating either of two federal subsidies encouraging local government expenditures: (1) income tax deductibility of local tax payments, and (2) the tax exempt status of interest on municipal bonds.

[We develop a model in which stock repurchases serve as a defense against takeovers by signaling the manager's private information about the value of the firm. The manager repurchases shares to block a takeover only if the cost of doing so is not too high. Since the cost is inversely related to the value of the firm under his management, a repurchase signals that the value of the stock is high, blocking a takeover. While a repurchase increases the expected value of the stock, it also makes the stock riskier. The model also implies that there are too few takeovers for efficiency.]

In simple economic models, it is relatively easy to describe how to impose a value-added tax at a uniform rate on all consumption goods, and to demonstrate that this tax is equivalent to a proportional labor-income tax, plus a tax on existing assets. The equivalence involves little more than the national income identity relating the sources and uses of income. Once one attempts to incorporate the costs of financial intermediation, however, tax analysis becomes more complicated. In attempting to determine how a VAT should treat financial transactions, various authors have attempted to apply results from simpler models. Unfortunately, these results can lead to conflicting, ambiguous, and misleading prescriptions. In this paper, we argue that one needs to rely more on the fundamental objectives of a VAT to decide how it should treat financial transactions. Adopting this approach, we find that, in principle, the VAT should apply to resources devoted to financial transactions in the same manner that it does in other sectors. However, as discussed below, there are real problems in implementing such a tax on the financial sector which we do not attempt to address in this paper.