Mergers and Trade Policy under Oligopoly

For an oligopolistic industry, the effects of mergers on the domestic country's optimal trade policy are analyzed. If the domestic country pursues an optimal trade policy then it will always lose as a result of a foreign merger. The optimal domestic response to a foreign merger is to decrease (increase) the tariff if demand is concave (convex) and to increase the production subsidy. The foreign merger reduces foreign welfare when the domestic country pursues its optimal trade policy. The optimal domestic response to a domestic merger is to leave the tariff unchanged and to increase the production subsidy.     

THE WELFARE EFFECTS OF FOREIGN CAPITAL INFLOW WITH TARIFF-RIDDEN AND QUOTA-RESTRICTED IMPORTS*

The welfare effects of foreign capital inflow and changes in the foreign price and tariff rate of a tariff-ridden imported good are considered for a small country for both 3 times 2 and 3 times 3 trade models with a quota-restricted imported good (whose special case is a nontraded good). For the 3 times 2 model, foreign capital inflow does not affect home welfare when there is no tariff on imports, but it harms the home country if a tariff is imposed on the imports to the extent that the tariff-ridden imported good is more capital intensive than the exported good. On the other hand, for the 3 times 3 model the foreign-capital inflow benefits the home country if the tariff rate is below a certain level under the analogous capital-intensity assumptions. The welfare effects of changes in the foreign price of the tariff-ridden good and its tariff rate remain the same for both models.     

Optimal policy for environmental goods trade in asymmetric oligopolistic eco-industries

In this paper, we examine the optimal structure of an environmental tax to pollution, a production subsidy to a domestic eco-industry, and an import tariff on environmental goods (EGs) in a two-country model where the home country imports EGs from the foreign country. Home and foreign firms that produce EGs engage in Cournot competition. We then assume that the number of the home local firms which produce EGs is constant, but that of the foreign firms is variable. Our main findings are as follows: (I) The optimal environmental tax level may be lower than the Pigouvian level even if the tax has a positive impact on the output of EGs produced by a domestic firm. (II) The optimal tariff level may be positive when the country implements the first best policy combination in a closed economy regarding the environmental tax and the subsidy. (III) The optimal subsidy level may be positive, and then the subsidy may be substitutive for the import tariff on EGs.     

Tariffs and the adoption of clean technology under asymmetric information

Abstract.  This paper examines the effect of a tariff on the decision of a foreign monopolist to adopt 'clean' technology, which reduces the flow of a negative cross-border externality. The clean technology increases the marginal cost of production relative to the dirty technology, but only the firm knows the extent of the increase. Under complete information, despite its protectionist motivation, the importing country's optimal tariff induces the firm to adopt the clean technology if and only if it is globally efficient to do so. Under incomplete information, this efficiency property is disrupted, and the firm biases its choice in favour of dirty technology. JEL classification: F13, F18     

Trade policy and mixed enterprises

Abstract .  This paper demonstrates that the degree of state ownership affects neither the level of socially optimal activities nor welfare if the government chooses optimal trade policy instruments. In the case of rivalry in the home market, the optimal import tariff is independent of the degree of state ownership, and the optimal production subsidy decreases with state ownership if the optimal tariff is positive. For the case of Cournot rivalry in a third market, the optimal export subsidy increases with state ownership, while in the case of Bertrand rivalry with differentiated products, the optimal export tax increases with state ownership.     

Foreign investment and migration: analytics and extensions of the basic model

"This paper provides a unified approach to the basic model of international factor mobility. The use of new graphical techniques complements the algebraic exposition to underscore the persistence of the Ramaswami effect which pushes an active, home country toward a near 'buy-out' of the foreign country's internationally mobile factors of production. By generalizing the Ramaswami function, which identifies the gains associated with moving to near buy-out, we are able to explore the forces at work that mitigate such a strategy and lead to situations in which only a partial buy-out, or even no acquisition of foreign factors is optimal. These features are developed in a context in which (i) technologies differ between countries or (ii) there exists a third, immobile factor of production."     

Capital Imports and Tariffs

This paper develops a three‐sector, three‐factor specific factor model with a tariff and presents conditions under which capital imports and tariffs can be welfare enhancing in a developing country. The impact on welfare depends on the tariff revenue effect and the repatriation effect. A capital import is welfare enhancing if it reduces the domestic output of imports. A tariff is welfare enhancing only if it reduces the return to foreign capital.     

Partial Privatization,Foreign Competition,and Optimum Tariff*

Using a simple international mixed oligopoly model with one public and one or more foreign firms, this paper examines the effect of partial privatization or foreign competition on optimum tariffs and finds that foreign competition lowers the optimal tariff rate but partial privatization raises it. This result implies that trade liberalization is welfare improving if a country opens up its economy by allowing foreign competition. However, the liberalization policy is not desirable when the country only partially or completely privatizes its publicly‐owned enterprises.     

Infant Industry Protection Revisited

In 1791, Alexander Hamilton suggested that assuring protection to domestic entrants Could pre-empt entry-degterrence by foreign firms. This paper reformulates his Argument in game-theoretic terms with asymmetric cost information, imposing the Requirement that both the foreign firm's threat and the home governments's promise of Protection should be credible. It derives a simple optimal tariff formula that depends Only on the expectation of foreign costs. It then shows that this tariff can lead to Welfare-decreasing entry, but only if thee foreign is relatively inefficient. However, If the formula is applied with dynamic consistency, and is rationally anticipated by both foreign and domestic firms, it prevents foreign entry-deterrence and improves deomestic welfare. [F13, 019]     

Foreign-Investment Tax and Tariff Policies in Developing Countries

In this paper we examine the welfare effects of tax on foreign capital and tariff policies for a small open economy with sectoral unemployment. The individually and jointly optimal tax and tariff rates in the absence or presence of international tax credits are derived. A subsidy on foreign capital coupled with a tariff can be jointly optimal when tax credits are absent in the source country. However, the capital subsidy policy may fail to hold when the foreign country follows a tax credit system.     

Location choice under trade and environmental policies

In this paper, we use a game theoretic model to analyze the trade-off between the attractiveness of FDI and the environmental damage caused by production under asymmetric information. In the first stage, the domestic developing country reveals the level of import tariff and pollution tax under information uncertainty about the environmental damage that the foreign firm can cause. The foreign firm from a developed country decides where to locate afterwards with complete information about its own damage. Results show that the developing country can be better off encouraging FDI if and only if the marginal damage of pollution is sufficiently low. The optimal level of pollution taxes attracting FDI is higher than the marginal damage of pollution. However, the optimal pollution tax without FDI can be lower than the marginal damage of pollution with sufficiently high demand in the developing country.     

Why Free Trade May Hurt Developing Countries

This paper builds a general equilibrium trade model where a country produces two traded goods and one nontraded public consumption good. The government finances the provision of the public good by taxing the incomes of factors of production, and/or by imposing tariffs. Within this framework, the paper (i) shows that a small tariff or an income tax improves the country's welfare if there is an undersupply of public good, and (ii) identifies the circumstances in which an improvement in the country's terms of trade may reduce its welfare, and free trade can be inferior to autarky. A terms of trade improvement, or the movement from autarky to free trade, definitely improves the country's welfare if the government imposes a tariff that leaves the domestic relative price of the imported good unchanged.     

TARIFF RETALIATION AND OUTPUT UNDER A FLEXIBLE EXCHANGE RATE

In a macroeconomic model with unemployment a tariff may raise output in the tariff-imposing country, but if the foreign country retaliates output falls in both countries due to asset market factors which put downward pressure on prices and output.     

The Ramaswami Argument in a Multi-commodity Setting

This paper considers the optimum taxes and tariffs in a multi-commodity setting. Using the argument in Ramawami (1968), I show that when all goods and factors are tradable, the home country should buy out all the foreign factors. Conditions for the optimal terms of trade are also analyzed. In a single consumption good model, the foreign factors should be bought out at the foreign autarky prices. This result is only partially true in the more general setting. While factor mobility should be prohibited before the buy-out, non-prohibitive tariffs have to be imposed on trade in goods to attain the optimum terms of trade.     

不完全信息、反倾销威胁与最优出口贸易政策

通过扩展Brander和Spencer(1985)的基本模型,本文首先证明了,在反倾销威胁下,基于完全信息假设的最优出口贸易政策要求出口国政府给予低成本企业更高的出口补贴或更低的出口征税,在无效激励机制下必然导致出口企业隐匿自己的真实成本类型,基于完全信息假设的最优出口贸易政策失效。在此基础上,本文进一步论证了不完全信息和反倾销威胁下激励相容的最优出口贸易政策,该政策要求出口国政府依据进口国国内要求保护压力的大小,采用不同的出口征税和一次性转移支付政策组合,激励出口企业如实报告成本类型,并使国家整体福利最大化。     

On the International Linkages between Trade and Merger Policies*

In a three‐country model, this paper investigates linkages between merger incentives of exporting firms and the trade policy of an importing country. When exporting firms come from only one country, the tariff response of the importing country reverses the welfare effects of a merger in the exporting country. If there exist two exporting countries, a merger creates two types of conflicting international externalities. First, a merger in one exporting country increases profits of all firms. Secondly, non‐merged firms lose if the importing country is free to raise its tariff in response to a merger of foreign exporters.     

The Choice of Optimal Protection under Oligopoly: Import Tariff v. Production Subsidy

Economists researching the area of optimal protection have tended to analyse the ranking of alternative policy tools in the presence of perfect competition, either when the government in an importing country achieves a non-economic target, or when there is a market distortion. Assuming international oligopolistic competition, I reconsider the choice of optimal policy instruments, i.e. an import tariff and a production subsidy. I show that the choice of optimal policy instruments depends on the relative number of home firms and foreign ones and on the magnitude of international cost differences.
JEL Classification Numbers: F12, F13.     

Optimal tariffs with inframarginal exporters

This paper shows that an importing country can have an incentive to impose a tariff to extract rents earned by foreign exporters even in a perfectly competitive setting. To demonstrate this, I develop a new model of international trade that incorporates fixed costs of exporting and firm heterogeneity within a perfectly competitive framework. In this setting, despite the fact that there are no preexisting distortions, the optimal tariff is positive even for a small country with no world market power. In the limit, as either firm heterogeneity or the fixed costs of exporting vanish, the optimal tariff approaches zero.     

Tariffs,Quotas, and Forward Contracts under Asymmetric Information*

We consider optimal trade policy for a large country with private information. We show that the optimal tariff leads to a signaling equilibrium with higher tariffs and lower welfare than under complete information, whereas the optimal import quota replicates the complete information equilibrium and thus is superior to the tariff. We also show that, with the tariff, the country may be better off being uninformed. Finally, we show that if the importing nation cannot commit to its tariff, the use of futures contracts together with the dynamically consistent tariff leads to the same equilibrium as under complete information with commitment.     

Tariffs versus quotas in the presence of imperfect competition and cross‐border externalities

Abstract.  We consider trade policies intended to affect the production of a foreign monopolist that generates negative externalities. We derive the optimal tariff and optimal import quota and examine which policy measure should be used to maximize domestic welfare. We find that if the domestic government does not have full information on the foreign firm's production method and if cross‐border externalities exist, import quotas are in some cases preferable to tariffs. Otherwise, however, tariffs are preferable to quotas. JEL Classification: F13, F18