Fiscal policy under a minimum‐time objective

In an endogenous growth model, we characterize the fiscal policy driven by a minimum‐time objective of economic development. We find that in equilibrium government should levy the highest possible consumption taxes, reduce public expenditures to the lowest possible level, and keep labor income tax rate and capital income tax rate satisfy a substitution relationship at the balanced budget constraint. We also identify the condition under which income tax rate should be set to zero. We further find that the equilibrium fiscal policy is equivalent to the growth‐maximizing fiscal policy, whereas it generally deviates from the welfare‐maximizing fiscal policy. We hence identify a circumstance where setting the policy goal of reaching an economic‐performance target as soon as possible cannot be justified in the sense of maximizing the welfare of households.     

Standards policy and international trade: Multilateralism versus regionalism

We develop a simple model of policy coordination on domestic standards and examine whether domestic standards policy can lead to regional and multilateral harmonization of standards under the principle of national treatment. This paper focuses on mandatory product and process standards affecting the characteristics of a final good that control negative consumption externalities (e.g., vehicle emissions control and safety standards, restrictions on the use of pesticides for agricultural goods, and safety standards for electrical products). Only the products that meet a country's national standards are allowed to circulate in that country's market. Raising standards reduces negative externalities caused by consumption of a traded good but increases firms’ costs. We use the core as the solution concept. A standards regime is considered to be in the core if it is not blocked by any coalition within countries. The main finding is that a multilateral agreement on standards that maximizes world welfare is only in the core if externalities are local or slightly transboundary. Otherwise, only a regional agreement on standards is in the core. As extensions, we consider many and asymmetric number of firms, asymmetry in market size, fixed costs for different standards, and a multilateral agreement on different standards.     

A Note on the Adverse Effect of Competition on Consumers

It is usually believed that higher competition, implying more active firms, benefits consumers. We show that this may not be the case in an industry with asymmetric cost firms. A rise in the number of more cost‐inefficient firms makes the consumers worse off in the presence of a welfare‐maximizing tax/subsidy policy. A rise in the number of more cost‐inefficient firms also reduces social welfare.     

POLITICAL ECONOMY OF STRATEGIC EXPORT POLICY IN A DIFFERENTIATED DUOPOLY*

This paper investigates the effect of a home firm's lobbying on a strategic export policy in a third market with a differentiated duopoly. We focus on its effect on domestic welfare under Bertrand and Cournot competition. Regardless of the mode of competition, the strategic export policy cannot improve domestic welfare in the presence of lobbying if the degree of product differentiation is high or the government is overly concerned with political contribution relative to domestic welfare. Moreover, for the same degree of product differentiation, the lobbying‐induced export policy is more likely to deteriorate domestic welfare relative to free trade under Cournot competition.     

Tax Policy When Countries Compete for Third Market Exports

We examine the welfare and other consequences of tax policy in a third market export model where duopolists located in two countries compete in prices. With tax competition between governments, we allow for welfare‐maximizing governments in the two countries to delegate tax setting responsibility to policy‐makers who have different objectives than the governments. The unique equilibrium in the tax competition environment involves both governments delegating tax setting responsibility to tax revenue‐maximizing policy‐makers. This equilibrium yields higher welfare for both countries than the outcome when the governments delegate to welfare‐maximizing policy‐makers. The paper also compares tax competition with tax harmonization and shows that when the entire export market is served, tax harmonization improves the welfare of the country that houses the low cost firm, while the other country may be immiserized.     

Variety‐Controlling Public Policy Under Addiction and Saturation

This paper constructs a tractable general equilibrium model for investigating the dissimilar effects of addiction and saturation on consumption and public policy. By introducing an industry‐specific intertemporal consumption externality, we provide clear analytical results that a lump‐sum subsidy for firms can increase welfare in the presence of a negative externality (saturation). A tax can accomplish the same given a positive externality (addiction). Unlike existing studies of cultural goods, these results are not based on assumptions concerning exogenous different preferences across groups, but rather on conventional monopolistic competition and consumption habit formation models in macroeconomics.     

Are Standards Always Protectionist?

We analyze the effect of heterogeneity of foreign and domestic producers on product standard and investigate whether the standard chosen by the welfare-maximizing policymaker is protectionist. In a partial-equilibrium set-up, both domestic and foreign producers compete in selling a product in the domestic market, in the presence of consumption externalities. The policymaker chooses a minimum domestic standard that has to be met by both domestic and foreign producers. Protectionism occurs when the welfare-maximizing domestic standard is higher than the international standard maximizing welfare inclusive of foreign profits. We show that the standard is anti-protectionist when foreign producers are much more efficient at addressing the externality than are domestic producers. Possible exclusion of domestic or foreign producers arises with large standards, which may alter the classification of a standard as protectionist or non-protectionist. The paper identifies multiple caveats for the estimation of tariff equivalents of nontariff barriers.     

The limitations of decentralized world redistribution: An optimal taxation approach

A centralized scheme of world redistribution that maximizes a border-neutral social welfare function, subject to the disincentive effects it would create, generates a drastic reduction in world consumption inequality, dropping the Gini coefficient from 0.69 to 0.25. In contrast, an optimal decentralized (i.e., with no cross-country transfers) redistribution has a miniscule effect on world income inequality. Thus, the traditional public finance concern about the excess burden of redistribution cannot explain why there is so little world redistribution.Actual foreign aid is vastly lower than the transfers under the simulated world income tax, suggesting that voluntary world transfers - subject to a free-rider problem - produces an outcome that is consistent with rich countries such as the United States either placing a much lower value on the welfare of foreigners, or else expecting that a very significant fraction of cross-border transfers is wasted. The product of the welfare weight and one minus the share of transfers that are wasted constitutes the implicit weight that the United States assigns to foreigners. We calculate that value to be as low as 1/2000 of the value put on the welfare of an American, suggesting that U.S. policy is consistent with social preferences that place essentially no value on the welfare of the citizens of the poorest countries, or that implicitly assumes that essentially all transfers are wasted.     

TIMING OF LUMPY INVESTMENT,PRICING AND TECHNICAL PROGRESS

In equipment‐intensive sectors – such as water utilities, power generation, and gas – billions of dollars are spent in capital equipment. The nature of the investment is often lumpy: at some point a plant has to be replaced and a large investment is required. We characterize the dynamic optimal investment policy of profit‐maximizing and welfare‐maximizing firms. We first show that, when there is no technical progress, the duration of the plant is longer for a profit‐maximizing firm. We then consider technical progress leading to either capacity expansion or to operating costs reduction. We show that duration tends to increase when the installed capacity increases over time, while it tends to decrease when technical progress reduces operating costs, both for profit‐maximizing and welfare‐maximizing firms. Under some conditions, when capacity expands over time the duration of the plant is longer for a profit‐maximizing firm than for a welfare‐maximizing firm.     

The Financial Resource Curse*

In this paper, we present a model of the financial resource curse (i.e., episodes of abundant access to foreign capital coupled with weak productivity growth). We study a two‐sector (i.e., tradable and non‐tradable) small open economy. The tradable sector is the engine of growth, and productivity growth is increasing with the amount of labor employed by firms in the tradable sector. A period of large capital inflows, triggered by a fall in the interest rate, is associated with a consumption boom. While the increase in tradable consumption is financed through foreign borrowing, the increase in non‐tradable consumption requires a shift of productive resources toward the non‐tradable sector at the expenses of the tradable sector. The result is stagnant productivity growth. We show that capital controls can be welfare‐enhancing and can be used as a second‐best policy tool to mitigate the misallocation of resources during an episode of financial resource curse.     

Permit Trading and Credit Trading: A Comparison of Cap-Based and Rate-Based Emissions Trading Under Perfect and Imperfect Competition

This paper compares emissions trading based on a cap on total emissions (permit trading) and on relative standards per unit of output (credit trading). Two types of market structure are considered: perfect competition and Cournot oligopoly. We find that output, abatement costs and the number of firms are higher under credit trading. Allowing trade between permit-trading and credit-trading sectors may increase welfare. With perfect competition, permit trading always leads to higher welfare than credit trading. With imperfect competition, credit trading may outperform permit trading. Environmental policy can lead to exit, but also to entry of firms. Entry and exit have a profound impact on the performance of the schemes, especially under imperfect competition. We find that it may be impossible to implement certain levels of total industry emissions. Under credit trading several levels of the relative standard can achieve the same total level of emissions.     

On the Growth and Welfare Effects of Defense R&D

In the United States, defense R&D share of GDP has decreased significantly since 1960. To analyze the implications on growth and welfare, we develop an R&D‐based growth model that features the commonly discussed crowding‐out and spillover effects of defense R&D on civilian R&D. The model also captures the effects of defense technology on (a) national security resembling consumption‐type public goods and (b) aggregate productivity via the spin‐off effect resembling productive public goods. In this framework, economic growth is driven by market‐based civilian R&D as in standard R&D‐based growth models and government‐financed public goods (i.e., defense R&D) as in Barro (1990). We find that defense R&D has an inverted‐U effect on growth, and the growth‐maximizing level of defense R&D is increasing in the spillover and spin‐off effects. As for the welfare‐maximizing level of defense R&D, it is increasing in the security‐enhancing effect of defense technology, and there exists a critical degree of this security‐enhancing effect below (above) which the welfare‐maximizing level is below (above) the growth‐maximizing level.     

Tax competition for foreign direct investments and the nature of the incumbent firm

We investigate tax/subsidy competition for foreign direct investments (FDI) between countries of different size when a domestic firm is the incumbent in the largest market and we study how the nature (public or private) of the incumbent firm affects policy competition. We show that, differently from the case of a private firm, the country hosting the incumbent always benefits from FDI if the domestic firm is a public welfare‐maximizing firm. We also show that the public firm acts as a disciplinary device for the foreign multinational that will always choose the efficient welfare‐maximizing location. An efficiency‐enhancing role of policy competition may then arise only when the domestic incumbent is a private firm, whereas tax competition is always wasteful in the presence of a public firm.     

EXPORT SUBSIDIES VERSUS EXPORT QUOTAS WITH INCOMPLETELY INFORMED POLICY MAKERS*

This paper analyses export subsidies (price incentives) and export quotas (quantity controls) in the Brander‐Spencer (1985) model when policy makers have limited information on demand and cost structures. We examine necessary or sufficient information for policy makers to determine welfare‐enhancing policies. It is crucial that they know the elasticity value of the slope of the inverse demand curve and the market share. It is also shown that for policy makers, export quotas are superior to export subsidies under certain conditions.     

The Optimal Use of Fines and Imprisonment If Governments Do Not Maximize Welfare

We consider a stylized model of crime and punishment in which the prosecution policy is defined by three variables: the size of punishment, the type of punishment, and the detection probability. We derive the optimal type of punishment under the assumption that the detection probability is chosen by a government whose objective function places a higher weight on the government's budget than the social welfare function does. We show that for serious crimes exclusive imprisonment is welfare maximizing. If costs of imprisonment are taken into account, the optimal punishment is a prison term with an additional fine that is smaller or equal to the costs of the prison term. For less serious crimes, fines without imprisonment are welfare maximizing. Therefore, this paper demonstrates that the standard result of the literature that fines should be used whenever feasible need not hold in the presence of a rent‐seeking government. Moreover, it offers a new explanation for the widespread use of mandatory imprisonment for serious crimes.     

Foreign Aid,Government Spending,and the Environment

Using an endogenous growth model, this paper examines the growth and welfare effects of the allocation of foreign aid in the recipient economy. As public inputs are a productive factor, a rise in the allocation of aid to the public inputs increases growth and hence the welfare of the economy. However, raising the ratio of aid to pollution abatement may not help an economy, because it crowds out public inputs. Since public inputs are also partly financed by income taxation, the welfare‐maximizing income tax rate is larger than the growth‐maximizing rate, because a portion of the aid constitutes a lump‐sum transfer and can increase household consumption and hence welfare.     

Debt, Growth and Budgetary Regimes

Within the Barro (1990) model of productive public services, but with the inclusion of public debt, we derive and characterize on the balanced growth path, a set of welfare‐maximizing fiscal rules under two budgetary regimes – one with only the standard dynamic government budget constraint, and the other involving the golden rule of public finance. We demonstrate analytically that the optimal fiscal policy differs in the two budgetary regimes considered. We also analyse two cases within the second regime: one, where the ratio of current spending to tax revenues is parametrically given, and another, where this ratio is optimally chosen by the government.     

Optimal public policy with endogenous mortality

We analyze the welfare‐maximizing policy mix between explicit and implicit taxation, where the probability of survival of the young agents depends upon the share of government expenditure on health, education and infrastructure. We show that increases in the survival probability lead to an increase in the reliance on seigniorage as a welfare maximizing outcome. However, the seigniorage tax base must be large enough for the benevolent planner to use the inflation tax.     

Teach a man to fish? Education vs. optimal taxation

Abstract In models of redistribution, differences in human capital are often the relevant source of heterogeneity among individuals. Presumably, the distribution of human capital can be manipulated through education spending. This paper examines the use of education as a redistributive tool when there is a non‐linear tax system in place. The results show that taxation, whether under full or asymmetric information, substantially reduces the redistributive role of education spending in maximizing social welfare. This points to a conflict between the equalization of utility and human capital outcomes.