Environmental Taxation and Induced Structural Change in an Open Economy: The Role of Market Structure

Abstract. Studies of structural change induced by environmental taxation usually proceed in a perfect-competition framework and typically find structural change to be quite moderate under realistic emission reduction scenarios. By observing that some of the industries affected are likely to operate under imperfect rather than perfect competition, additional mechanisms emerge which may amplify structural change beyond the extent identified as yet. Especially, changes in economies of scale may arise which weaken or strengthen the competitive position of industries over and above the initial cost effect. Using a computable general equilibrium model for Germany to examine the effects of a unilaterally introduced carbon tax, we find that induced structural change is more pronounced under imperfect competition than under perfect competition. At the macroeconomic level, we find that aggregate losses in economies of scale are larger than aggregate gains, implying that the total costs of environmental regulation are higher under imperfect competition than under perfect competition.     

International Trade and Gender Wage Discrimination: Evidence from East Asia

The paper explores how competition from international trade affects gender wage discrimination in two open economies. According to neoclassical theory, if discrimination is costly, then increased industry competitiveness from international trade lessens the incentive for employers to discriminate against women. This effect should be stronger in concentrated sectors, where employers can use excess profits to cover the costs of discrimination. Alternatively, increased international trade may reduce women's bargaining power to achieve wage gains. Results for Taiwan and Korea indicate that, in contrast to neoclassical theory, competition from foreign trade in concentrated industries is positively associated with wage discrimination against women.     

Structural Estimation of Variety Gains from Trade Integration in Asia

This article studies the variety gains of trade integration in Asia. Adopting a heterogeneous firm model of trade of monopolistic competition allowed us to estimate not only the welfare gains because of country specialisation, but also the variety gains arising from trade integration. The underlying structural parameters were estimated econometrically, based on a large panel of firm‐level data for the Asian economies (ORIANA). Our empirical findings suggest that, when relaxing the assumption of firm homogeneity and accounting for export market entry costs, the gains from trade integration are higher than in conventional models with representative firms.     

Economies of scope and scale in the Norwegian electricity industry

An important issue for multi-product firms to consider is economies of scope, i.e., whether there is any benefit from producing two or more products, or whether specializing in producing only one product would be less costly. We examined the economies of scope for Norwegian electricity companies because policy makers have decided to force companies that both generates and distributes electricity to split their operations into two companies, one engaged in generation only and the other in distribution only. We set out to test the validity of the policy makers decision on unbundling generation and distribution. Using data from Norwegian electricity companies for the period 2004–2014, we found evidence of economies of scope, meaning that policy makers’ insistence on separating generation and distribution companies will have increased costs. We also found evidence of economies of scale, meaning that there are cost savings in expanding outputs. Our findings provide important information to consider in future policy decisions in the Norwegian electricity industry, probably with implications for other countries.     

VERTICAL AND HORIZONTAL ECONOMIES IN THE ELECTRIC UTILITY INDUSTRY: AN INTEGRATED APPROACH

ABSTRACT ** :  The empirical literature on the cost structure of the electric utility industry traditionally focused on the measurement of specific technological properties: 1) scale economies in generation or distribution; 2) multi-product (or horizontal) scope economies at one particular stage; 3) multi-stage (or vertical) scope economies. By adopting an integrated approach, which simultaneously considers both horizontal and vertical aspects of the technology, we find the presence, on a sample of Italian electric utilities, of both vertical integration gains and horizontal scope economies at the downstream stage. In the light of recent regulatory reforms aiming at restructuring European electricity markets, our findings have important policy implications as for the proper configuration of the industry. Moreover, this methodology can be usefully applied to the study of the production structure of other public network utilities involved in similar vertical and horizontal reorganization processes.     

Reducing urban public transport costs by tendering lots: a panel data estimation

Allotment is, for urban authorities, a governance strategy to reduce public transport costs. It consists of dividing a network into several lots, so as to multiply the number of calls for tender. On the one hand, gains should be obtained by increasing competition for the market and reducing the costs of obtaining accurate information. On the other hand, cutting a network into several parts is also expected to have negative consequences on production costs, in terms of lower returns to scale. Many industry stakeholders believe that the latter element more than compensates for the former. In this article, we estimate a translog cost function with a panel of 141 French urban public transport networks. Our main conclusion is that scale economies are exhausted for a production of about 3 million vehicle-kilometres per year. Therefore, as far as returns to scale are concerned, allotment would reduce the costs of public transport services for the main cities of our sample. A second dividend for allotment is then presented and implies that the assumed trade-off between returns to scale and increased competition is irrelevant.     

China's emerging market for property rights: Theoretical and empirical perspectives1

his paper contrasts state–directed and market–mediated reform of enterprise ownership rights in transition economies. We evaluate China's emerging market for enterprise ownership rights from the perspective of conditions underpinning the Coase Theorem: the assignment of property rights, the degree of competition, and the nature of transaction costs. China's recent experience suggests that policies designed to expand and support the scope of decentralized, market–based restructuring of ownership rights, even under conditions that deviate widely from the ideal assumptions underlying the Coase Theorem, may prove more beneficial than direct official intervention. JEL classification: G34, K11, L1 and P3.     

Scale and scope economies for drug abuse treatment costs: evidence for Washington State

Drug abuse treatment has been pervasive in the US in the recent years, and the associated direct treatment costs approached $18 billion in 2001. However, there have been few published studies on scale economies, and none on scope economies, for drug abuse treatment costs. We estimate a restricted cost function for 17 hospitals in Washington State that provided inpatient and/or outpatient drug abuse treatment during the years 1997–2004. We find significant evidence of scale economies for hospitals that provide only outpatient drug abuse treatment services. The marginal costs of outpatient services are even smaller for hospitals that produce both outpatient and inpatient drug abuse treatment services. Further, these joint-production hospitals exhibit diseconomies of scope, or specialization economies. These results all imply that recent trends towards additional outpatient treatment services will enhance cost efficiency.     

Japan's oligopolies: Potential economy wide gains from structural reforms

Japan's slowdown preceded those in the other advanced economies and is therefore of global significance. While its initial causes were financial, a resurgence will depend on productivity growth, key determinants of which are investment and industrial structure. This paper focuses on the costs of a structure dominated by oligopolies and the potential gains from combined competition and tax reform. We first identify industry concentration levels and economic rents using firm specific data and then incorporate these in a calibrated economy-wide model. Simulations suggest that competition policy and more openness to investment in services could deliver 5–17% of additional GDP. These stimulate investment via returning external wealth. Gains are spread most evenly if competition policy is combined with company tax reform. This retains fiscal balance and improves the domestic purchasing power of all Japanese incomes.     

Integration, Fragmentation and the Geography of Welfare

The welfare effects of trade integration with endogenous production technology are examined in a monopolistic competition framework. In addition to explaining industry location, trade patterns and accompanying effects on local welfare, the analysis highlights the endogenous change in the costs of supervising fragmented production when economies open up to trade. By regarding fragmentation as a skill‐intensive activity, factor proportions (rather than size) strongly affect the international distribution of gains from trade. Nevertheless, albeit not generally, for a wide range of parameter values, even a skill‐poor country can participate in the gains—despite loss of industry.     

Immigration and Economic Welfare: Resource and Environmental Aspects*

The relation between immigration and the economic welfare of residents b analyzed for resource-rich economies (such as Australia) both under competitive conditions and when various distortions are present Immigration provides efficiency gains for residents under distortion–free competition for standard ‘gains from trade’ reasons. Such reasons, however, tend to be ignored by immigration and ‘optimal population’ theorists who raise the issue of restricting immigration without explicitly referring to the distortions. In situations where distortions and externalities are present, we argue that it is generally preferable to devise policies which specifically target the distortions than to restrict immigration.     

The competition effects of the Single Market in Europe

The reduction in trade barriers in Europe through the Single Market Programme (SMP) was intended to increase competition in European markets, and hence welfare and efficiency. The paper examines how the SMP has affected trade patterns and what can be learnt from this regarding the impact on competitive behaviour. Combining an econometric and computable general equilibrium methodology, it is argued that (1) the SMP has indeed had a strong impact on competitive behaviour; (2) the extent of the impact depends both on changes in the intensity of competition as well as on changes in the nature of competitive interaction; (3) while all economies experience potentially large welfare gains from the SMP, it is the smaller economies that experience the larger gains, but this in turn suggests that they experience a greater degree of restructuring.     

THE EFFECTS OF FIRM BOUNDARY AND FINANCING CONSTRAINTS ON UTILITY COSTS: THE CASE OF MUNICIPALLY OWNED ELECTRICITY DISTRIBUTION UTILITIES

ABSTRACT: A number of studies have examined costs and potential for scale and scope economies in electricity distribution; however, few if any, have examined this area in terms of the unique constraints associated with municipal ownership or historical and regulatory constraints associated with former municipal ownership. This paper focuses on 19 distribution‐only municipally owned utilities for a ten‐year period (1988–97). Distortions from variable outputs but largely fixed inputs are minimized. The data used were collected specifically to assess productivity, cost, and efficiency performance and include value‐based capital inputs and service prices. Outputs include energy conveyed and number of connections; inputs include capital, system losses, labour, and materials. We examine the effect of using third‐party financing (e.g., connection charges), with its inherent principal‐agent problems, on utility costs, as well as the effect of shared services and multi‐utility output (e.g., electricity and water). A translog total cost function is estimated. Our findings suggest significant returns to scope but also significant increases in costs associated with the use of third‐party financing. The results also suggest scale diseconomies. Shared outputs, which have been greatly restricted or eliminated under restructuring, may have provided larger, and now lost, economies than the scale returns blindly pursued by some through restructuring or incented/forced mergers or divestitures. Finally, it is clear that third‐party financing can raise costs; such financing is widely used among utilities providing electricity, gas, water, and telecommunications, and should be closely scrutinized.     

GAINS FROM TRADE WITH VARIABLE TRADE ELASTICITIES

We measure gains from trade in multisector economies with nonhomothetic preferences where changes in trade costs generate reallocation of expenditure across sectors. We show how to measure the trade elasticity and how it relates to welfare. In this environment, the trade elasticity now varies both across countries and with levels of trade costs. In an application, we find that the trade elasticity varies substantially across countries and that the gains from moving from autarky to observed trade are on average between 24% and 28% greater than in a model where the trade elasticity is constant.     

The effects of the new communications media on employment

The post-World War II economic growth happened in a context of significant productivity gains in the industrial sector and an increasing demand for services, where productivity gains remained quite low. This explains the strong expansion of employment in the tertiary sector relatively to the industrial sector. In the 1970s, this growth pattern reached a crisis point: in most Western economies, productivity gains lagged in the industrial sector while no visible changes occurred in productivity in the service sector.With the more widespread use of data processing and the emergence of new communication media, this trend showed signs of reversal. Information handling activities showed considerable productivity gains, rivaling those previously seen in industry. And the spur for technical progress, once limited to the industry, appears to have spread to the services and information sector.With respect to employment, this tendency could lead to a reduction in employment in the tertiary sector. So the new technologies would come about at the worst possible moment, with all time high unemployment rates in Western economies.So it is not surprising to see the current temptation to delay the process, or to adopt a so called “two-speed growth strategy”: the strongest productivity gains would be enhanced in the traded sector (mostly the industrial sector) where foreign competition is most prevalent; and the resulting cost on employment would be offset by maintaining low productivity levels in the protected sector which, to the present, has typically been the services sector.The present analysis takes a more optimistic stand-point on the net effect of technical progress on employment. The authors focus on the interplay between productivity in the exposed sector and productivity in services, with emphasis on the necessity for decreasing unit costs in the protected sector, enabling the traded sector to remain competitive.     

The Voluntary (Private) Production of Public Goods,the Gains From Trade,and Comparative Advantage*

Any (finite) number of privately produced public goods are incorporated into a general trade-theory model of private goods and factors. Postulating Cournot-Nash behavior, a necessary condition for gainful trade is derived. Potential trade gains are related to the law of comparative advantage in private goods and the change in the underproduction of public goods. A sufficient condition is also proven. Trade gains/losses are compared for more or less populous economies. All the results have analogues in the literature on imperfect competition and/or increasing returns to scale.     

International trade and the division of labor

This paper develops a model of international trade based on the division of labor under perfect competition. International trade, by eliminating the duplication of coordination costs, leads to a greater variety of tasks, each produced at a larger scale than in autarky. The greater variety of tasks implies greater division of labor and hence gains from trade. Extending the model to two factors of production yields the additional result that if the two countries are sufficiently similar in their relative endowments, then both factors of production can experience gains from trade.     

Estimation des Économies D'échelle et de gamme dans de petites coopératives de services financiers: le cas des caisses populaires acadiennes

This study uses accounting data stemming from 80 credit unions affiliated to the "Fédération des caisses populaires acadiennes" to estimate a multi-product translog cost function with the aim to test for the presence of scale and scope economies. The cost model relies on the production approach and the financial services are gathered in four categories of products. The model is completed by three inputs and one control variable, the latter being used to capture the heterogeneity of costs arising from the average wealth of membership. Since the estimated output elasticity of the total cost, 0.89, is statistically less than one, the models detect quite important scale economies. As to scope economies, they are present but the coefficients are weakly significant.     

刍议区域经济核心竞争力理论与实践

区域经济核心竞争力是指某一区域在经济发展过程中形成的不易被其他区域效仿的能带来经济高速发展的独特能力.它是区域经济在一系列发展过程和决策中形成的,具有独特优势的技术、文化或机制所决定的巨大的资本能量和经济实力.区域经济核心竞争力表现在区域经济绩效、政府效率、企业效率和区域内基础设施上,它是区域整体获得长期稳定的竞争优势的基础,是由区域经济发展战略和其实现战略的团队执行力决定的.因此,区域经济核心竞争力需要不断地适应环境变化,进行选择、打造恰当的战略和战略执行力;通过掌握核心技术,整合优势产业和形成特有品牌提升区域经济核心竞争力.     

Scale,scope, and regulation in the Texas gas transmission industry

This article describes and analyzes the Texas Railroad Commission's regulatory policies for the intrastate gas transmission industry, paying special attention to the impact of direct utility competition on scale and scope economies. Our econometric results suggest that most firms operate at substantial decreasing returns to scale, and the largest firms suffer the biggest diseconomies of scale. There are economies of scope between types of gas sales, but diseconomies of scope when a pipeline combines transportation with multiple categories of gas sales. These results suggest that the Texas Railroad Commission's liberal policies on entry and private contracting have not resulted in inefficient entry.