Welfare implications of trade liberalization and fiscal reform: A quantitative experiment

This paper studies the welfare implications of revenue-neutral trade liberalization and fiscal reform programs for developing economies using a multi-sector dynamic general equilibrium model of a small open economy. We analyze how different combinations of tariffs – on imported consumption goods, intermediate inputs, and capital goods – and taxes – on consumption, labor income and capital income – affect the transitional and long-run welfare. We report three main findings. First, trade liberalization programs financed by consumption and labor income taxes tend to result in substantial welfare gains, but financing the lost tariff revenue through capital income taxes can have an adverse impact on welfare. Second, a significant fraction of welfare changes is due to transitional effects stemming from the allocation of resources in response to changes in tariffs and taxes. Third, trade liberalization and fiscal reform programs often translate into much larger welfare gains in countries that are more open to international financial markets.     

Efficiency,equity, and environmental implications of trade liberalization: A computable general equilibrium analysis

This paper evaluates the effect of trade liberalization on global efficiency, equity, and the environment using global welfare, welfare redistribution, and carbon emission as indicators. A static, computable general equilibrium trade model with explicit representation of agricultural production and energy use is used to simulate a series of new scenarios in which 1997 baseline import tax and export subsidy trade barrier equivalents are scaled back. Findings indicate that with trade liberalization agricultural output declines, energy use increases, and carbon emissions rise. Global welfare rises revealing an overall increase in efficiency; however, gains to poorer nations come at the expense of richer nations. An increase in the use of polluting inputs such as coal in developing countries suggests poorer nations will risk environmental degradation with the lowering of trade barriers.     

Structural estimation and solution of international trade models with heterogeneous firms

We present an empirical implementation of a general-equilibrium model of international trade with heterogeneous manufacturing firms. The theory underlying our model is consistent with Melitz (2003). A nonlinear structural estimation procedure identifies a set of core parameters and unobserved firm-level trade frictions that best fit the geographic pattern of trade. Our estimation model is consistent with the specified general equilibrium model, and we conduct general equilibrium counterfactual analyses to illustrate model responses. We first assess the economic effects of reductions in measured tariffs. Taking the simple-average welfare change across regions the Melitz structure indicates welfare gains from liberalization that are four times larger than in a standard trade policy simulation. Furthermore, when we compare the economic impact of tariff reductions with reductions in estimated fixed trade costs we find that policy measures affecting the fixed costs are of greater importance than tariff barriers.     

Trade liberalization,division of labor and welfare under oligopoly

Incorporating explicitly division of labor into a two-country general oligopolistic equilibrium model, we examine the effects of trade liberalization on firm productivity and welfare. We show that a tariff reduction increases the firm productivity of the trading industries but decreases that of the non-trading industries. An expansion of the trading industries, in contrast, decreases the firm productivity of both the trading and non-trading industries. We then find that a tariff reduction necessarily reduces welfare while the welfare effect of expansion of trading industries is ambiguous.     

Trade liberalization, product variety and growth in a small open economy: a quantitative assessment

We develop a numerical growth model that quantifies the welfare effects of trade liberalization. Additional intermediate input varieties provide the engine of growth and dramatically magnify the welfare gains from trade liberalization. In our central model, a 10% tariff cut leads to a 10.6% estimated gain in Hicksian EV. Systematic sensitivity analysis shows that there is virtually no chance of a welfare increase less than 3%, but a 6.6% chance of a welfare gain greater than 18%. We show that complementary reforms are crucial to fully realize the potential gains from the trade reform.     

Endogenous tariffs and trade adjustment assistance

This paper examines whether trade adjustment assistance is an effective tool for blunting political opposition to trade liberalization. The traditional argument is that adjustment assistance bribes labor unions so that they will accept reduced tariff protection. In this way, a trade adjustment assistance program should help the government lower tariffs and increase social welfare. This paper introduces trade adjustment assistance into a political economy model of endogenous tariff formation. The model shows that adjustment assistance reduces policy makers’ incentives to press for trade liberalization and may slow down the pace of reform and lower social welfare under certain plausible conditions.     

贸易结构、分工经济与区域服务贸易自由化的福利效应

由于区域内经济体出口相似指数过高,在发展区域服务贸易自由化的过程中会出现竞争,不同区域成员贸易结构和专业化分工特点也影响区域服务贸易自由化的发展。文章以亚洲经济体区域服务贸易自由化发展为例,采用面板数据的因果关系模型,定量分析贸易结构、分工经济与区域服务贸易自由化的福利效应三者之间的关系。研究得出,无论是从长期还是短期来看,服务贸易的互补性和服务贸易的专业化分工都是服务贸易出口额增长的格兰杰原因。     

General equilibrium trade modelling with Canada–US transportation costs

Transportation costs are an important topic in international trade, but seldom have researchers paid attention to general equilibrium trade modelling with transportation costs and explored their relevant effects. This paper uses numerical general equilibrium trade model structures to simulate the impacts of transportation costs on welfare and trade for a Canada–US country pair case. We compare two groups of model structures: Armington assumption models and homogeneous goods models. Within these two groups of models, we also compare balanced trade structures to trade imbalance structures and production function transportation costs to iceberg transportation costs. Armington goods models generate more absolute welfare gains from transportation cost elimination than homogeneous goods models. Welfare gains under balanced trade structures are larger in production function transportation cost scenarios than in iceberg transportation cost scenarios, but under trade imbalance structures, welfare gains are greater under iceberg transportation cost scenarios. Canada's welfare gains in the iceberg transportation cost scenario are significantly larger than gains in the production function transportation cost scenario. On trade effects, homogeneous goods models generate more export and import gains, balanced trade structures have more trade variations, and iceberg transportation costs generate more trade effects.     

Charting the pacific: an empirical assessment of integration initiatives

Trade negotiations after Uruguay may well be dominated by the Pacific Rim, where two free trade areas (ASEAN Free Trade Agreement, or AFTA; and North American Free Trade Agreement, or NAFTA) already exist and larger agreements are under active discussion (involving the Asia Pacific Economic Cooperation, or APEC, area and an East Asian Economic Group). This article analyzes several initiatives using a simple global general equilibrium model that incorporates conventional welfare gains as well as benefits derived from firm level economies of scale, induced changes in foreign investment, and dynamic increases in productivity. Broad Pacific liberalization—i.e., East Asia, North America, and Australasia—is shown to be superior for each participant to liberalization limited to individual countries or East Asia, but not by much. Most favored nation liberalization is shown to be superior for each participant to preferential liberalization—if the actor is East Asia, but not the Pacific as a whole. These estimates will need to be refined, but they suggest that the benefits from Pacific liberalization could exceed $100 billion per year.     

Entry liberalization and export performance: a theoretical analysis in a multi-market oligopoly model

This paper is an attempt to demonstrate how the entry (costless) of firms in an industry may have a dramatic effect on exports from an industry in a country. The results have tremendous implications for LDCs suffering from resource and BOP constraints but having reservoirs of cheap labor. The welfare effects of such entry liberalization policy (or subsidy) can be stated from the Bhagwati theorem that a reduction in an only (single) distortion is necessarily welfare improving by reducing monopoly or oligopoly distortions. However, we have shown that the entry liberalization policy is welfare superior to an equivalent subsidy policy where equivalent is defined in terms of the impact on exports. As a by product, we have also shown how one can integrate the oligopoly models of trade with the general oligopoly literature. The results on the limiting behaviour of an open economy oligopoly model extend the standard results in the oligopoly theory in a closed economy.     

National welfare in an open economy in the presence of foreign-owned factors of production

In the presence of foreign-owned factors of production in the economy, the effect of trade policy changes on national welfare needs to take into account the possible redistributive effect between foreign-owned and domestic factors. Therefore, an otherwise welfare-improving trade liberalization may paradoxically worsen national welfare. This paper analyzes this important, new area of trade theory and establishes the condition under which this paradox of immiserizing trade liberalization arises. The analysis is also applicable to analyzing the effects of external tariff variation in customs unions, with full internal factor mobility, on member countries' welfare.     

Up the average cost curve: Inefficient entry and the new protectionism

A two-country model is developed in which each country produces one good with increasing returns, the goods being perfect or imperfect substitutes. With Cournot-Nash behavior and free entry, certain restrictive trade policies have effects opposite to their favorable effect under noentry assumptions. Import tariffs and export subsidies lead to inefficient entry that raises rather than decreases the average production cost of and price charge by the domestic industry with negative welfare consequences. We argue that these predictions of our model are closely consistent with extensive Canadian data on entry, exit, and firms' responses to trade liberalization.     

Unions, competition and international trade in general equilibrium

We develop a two-country, multi-sector model of oligopoly in which unionised and non-unionised sectors interact in general equilibrium. The model is used to study the impact of trade liberalisation, deunionisation and firm entry on wages in unionised and non-unionised sectors, and on welfare. We find that a shift from autarky to free trade increases non-union wages and welfare, whereas the effect on union wages is ambiguous. We also show that partial deunionisation leads to higher wages in both unionised and non-unionised sectors, but only increases welfare when the proportion of unionised sectors is sufficiently low. Finally, wages in non-unionised sectors necessarily increase with firm entry, while the response of union wages and welfare depends on the trade regime.     

Devaluation and liberalization in the presence of tariff and quota restrictions: An equilibrium model

The purpose of this paper is to examine and compare the effects of devaluation and trade liberalization policies on a monetary economy which uses quotas in contrast to an economy which uses tariffs. This is done in a general equilibrium framework. The paper also investigates the reasons for coupling liberalization policies with a devaluation.     

电信服务贸易自由化的经济效应研究综述

GATS框架下的电信多边谈判使世界电信市场的开放进程有了明确的时间表,它通过督促各国积极实践电信承诺来推进电信服务自由化。电信服务贸易自由化不仅促进各国电信服务的相互渗透,而且有利于电信服务消费者福利的改善。电信市场开放以来取得的巨大成就显示了服务贸易自由化对经济的重要作用。     

The unfinished agenda: Indian agriculture under the structural reforms

Employing a dynamic nine-sector, seven-income classes computable general equilibrium (CGE) model for the Indian economy (1985–90). this paper analyses the medium-run effects of (agricultural) trade liberalization. Its focus is on the effects of trade reform on farmers' incentives, because it is often presumed that the lack of adequate incentives constitutes the major constraint on private agricultural investment and the use of modem inputs. The simulation results suggest that, given empirically plausible price response elasticities, the improvement in farmers' incentives consequent upon trade liberalization is unlikely to increase agricultural productivity and real incomes in a broad-based and sustained manner. It is with reference to these results that major technological, social and structural, and organizational barriers to private agricultural investment are discussed and an important role is identified for government intervention in fostering agricultural development.     

Goods and factors liberalization under increasing returns to scale

This paper develops a general equilibrium model with alternative forms of import restrictions, international capital mobility, and taxes on the rate of return on foreign capital in the context of a small open economy using an external increasing returns technology. Within this framework, this paper analyses the price and welfare effects of import liberalization in the presence of tax on foreign capital and of factor flows liberalization in the presence of alternative forms of import restrictions. It is shown, among other things, that, in contrast to the existing literature on constant returns to scale economy, the optimal policy towards foreign factors is possibly tax under each form of import restrictions.     

Per capita income,market access costs,and trade volumes

There is strong empirical evidence that countries with lower per capita income tend to have smaller trade volumes even after controlling for aggregate income. Furthermore, poorer countries do not just trade less, but have a lower number of trading partners. In this paper, I construct and estimate a general equilibrium model of trade that captures both these features of the trade data. The key element of the model is an association between trade costs (both variable and fixed) and countries' development levels, which can account for the effect of per capita income on trade volumes and explain many zeros in bilateral trade flows. I find that market access costs play an important role in fitting the model to the data. In a counterfactual analysis, I find that removing the asymmetries in trade costs raises welfare in all countries with an average percentage change equal to 29% and larger gains for smaller and poorer countries. Real income inequality falls by 43%.     

How and how far to liberalize a developing economy with informal sector and factor market distortions

Whether a liberalizing developing economy should implement the entire WTO-prescribed package, and to what extent this is expedient, are two important questions, especially because the available empirical evidence suggests that developing countries have been facing substantial adjustment costs in their endeavour to implement trade and investment reform. The present paper makes a humble effort to provide answers to the above questions in terms of a three-sector general equilibrium model with informal sectors. Welfare implications of three liberalization policies: inflow of foreign capital, tariff reduction and labour market reform, have first been analysed in a full-employment framework. Later, the paper has been extended into a Harris?–?Todaro framework with an urban informal sector and capital market distortion. We have shown that welfare consequences of a tariff reform and/or a policy of deregulating the labour market crucially depend on the presence and magnitude of foreign capital in the economy. It is argued here that unless a proper choice among different prescribed policies, compatible with the internal institutional, technological and trade-related characteristics, is made, drastic implementation of reform measures may produce counterproductive results for the welfare of the relevant country.     

Growth gains from trade and education

A multi-sector general equilibrium model is presented where education enhances general human capital, which is essential for increasing or maintaining the mobility of workers across industries. The paper shows that international trade, combined with education, can have a positive growth effect by allowing workers to move easily to, and specialize in, the industry with the greatest productivity in each period, which enables an economy to grow in the long run at the growth rate of the industry with the most rapid technical progress. Depending on the initial ratio of general-to-specific human capital stock, multiple equilibrium growth paths can exist including a poverty trap, and trade liberalization can allow an economy in a poverty trap to transform into one with continuous education and higher output growth.