The effectiveness of regulation in the electrical energy industry

There is a gap between what federal and state regulatory commissions are authorized to do and what they are doing to regulate the electrical energy industry. It has been argued that a pricing scheme in the industry has evolved akin to the pricing scheme a discriminating monopolist might employ for different classes of consumers that are spatially diffuse. The attention of the paper is focused on the effectiveness of regulation in the industry, given the characteristics of it. The method of analysis chosen is to construct two models which are polar opposites and compare the results with what was actually the situation in 1973. The conclusion indicates that it is justifiable to argue that the electrical energy industry on the whole is not allowed to behave as a spatial monopolist. It is not correct to conclude that monopolistic tendencies are absent. Specifically, the pricing structure does depart from the competitive criterion which requires price to equal marginal cost for each consumer sector and all regions. Further, little electrical energy is transmitted interregionally.     

Integration, Complementary Products, and Variety

This paper examines the incentives for integration when the market for consumer durables (hardware) is oligopolistic and the market for complementary services (software) is monopolistically competitive. We find that the equilibrium industry structure will depend on the magnitude of the fixed costs of software development. If the software development costs are relatively large, the equilibrium industry structure is unintegrated, that is, neither hardware firm integrates; if the software development costs are relatively small, the equilibrium industry structure is integrated, that is, both hardware firms integrate. Under the integrated industry structure, hardware profits are lower, less varieties are provided, and hardware prices are lower than under the unintegrated industry structure. The game has a prisoners' dilemma structure when the software development costs are relatively small because of a foreclosure effect. Strategically increasing the number of software varieties provides an avenue for an integrated hardware firm to increase its market share and profits by reducing the number of software varieties available for an unintegrated rival technology. Although consumer surplus is higher under an integrated industry structure, the total surplus associated with the unintegrated industry structure exceeds that of the integrated industry structure.     

Evolving Electric Utility Regulatory Policy

A bstract . Current electric utility pricing methods understate the marginal social casts of electricity. Electricity prices are set to cover the utility's average cost rather than the higher marginal social cost. This mispricing hides from consumers the true cost their consumption imposes on society and, thereby, encourages them to ignore efficient conservation opportunities. Additionally, the conservation market suffers from a number of imperfections such as barriers to the acquisition of information, high upfront capital costs and the lack of conservation equipment availability. The electricity and conservation multimarket equilibrium is not achieved. The result is that society overconsumes (excess demand) electricity, overinvests in electric generating plants and underinvests (excess supply) in conservation resources. The large, yet uncertain, level of foregone conservation investment offers new opportunities for regulators and electric utility managers to improve economic efficiency with regulatory and planning policies that appropriately encourage the cost effective use of conservation resources. In the absence of the most efficient policy, marginal social cost pricing, integrated resource planning (IRP) is being adopted as a potential second-best regulatory policy and utility resource planning framework to improve energy efficiency. IRP uses mathematical optimization methods to search among many alternate resource portfolios of electricity creating and saving technologies. These methods identify the mix that best meets society's needs with the least social cost , where the social external costs and benefits of generating plant and conservation, respectively, are considered. Such a goal requires the choice of a resource portfolio that optimizes a complex objective function. As a result, the solution offers a resource action plan for electric utilities that may be Pareto-improving.     

Public input competition and agglomeration

This paper analyzes the impact of public input competition in a New Economic Geography framework. It is shown that regional competition yields an overprovision of public inputs if trade costs are sizable while it leads to underprovision if regions are highly integrated. Moreover, public input competition assures a dispersion of industry as long as trade costs are high but induces agglomeration even for ex ante identical regions if trade costs have fallen below a certain value. Finally, a trade-off between regional convergence and efficiency arises since the efficient distribution of regional infrastructure requires full agglomeration for sufficiently low trade costs.     

On firm-level,industry-level,and aggregate employment fluctuations

Employment fluctuations are examined, at different levels of aggregation, in a model with firm-specific hiring decisions due to search frictions and sticky pricing. The results indicate that firm-level employment dispersion rises with higher price stickiness and higher demand elasticity, whereas it falls with more convexity of search costs and with a higher labor supply elasticity. Industry-level employment is more volatile and less procyclical than aggregate employment, and a larger industry size reduces volatility and raises co-movement with output. The calibrated model is able to match the volatility, autocorrelation and cyclical correlation of US industry-level employment when incorporating firm-specific technology shocks.     

Randal Heeb Innovation and Vertical Integration in Complementary Markets

This paper studies vertical integration by an essential-good monopolist into complementary markets. Unlike previous studies of complementary products, consumers are allowed to purchase some components of a complementary basket, but not others. Two different pricing strategies by the integrated firm may emerge. In mass-market equilibria, the price of the complement under integration is zero and it is given away with the essential good. Niche-market equilibria have more conventional pricing. This dichotomy is consistent with consumer software pricing. Integration enhances consumer and total surplus, unless it leads to exit by the higher-quality rival, in which case welfare is reduced. Exit is most likely when it is least damaging to consumer welfare. Integration reduces innovation by the rival firm. The effect on innovation by the integrated firm is ambiguous, but numerical computation of an extended model indicates that integration increases the innovation of the integrated firm and enhances welfare.     

ABC and Variability Accounting Differences and potential benefits of integration 1

Activity-Based Costing (ABC) started out as a vehicle for (i) improved product costing for use in pricing, switched later to (ii) profit priorities using hierarchies of cost assignment, and now focuses on (iii) accounting for capacity constraints situations.

Firstly, the paper demonstrates that the data requirements for these three different uses of ABC can be met by recording the following characteristics of resource utilization in a relational database: quantitative -non-monetary -utilization in the form of ‘type of production factor’, ‘organizational unit’ and the immediate ‘objective for the use of resources'; discharge horizon, absolute and relative divisibility of production factors employed; and assignment of costs to classification objects, observing principles of non-arbitrariness. These features are utilized in ‘Variability Accounting’.

Secondly, the paper argues that, in complying with these principles, the evaluation of improvements in cost-accounting systems is on much more solid ground than if system changes are evaluated in terms of the resulting conse-quences for full-cost product costs.

Based on these findings, the paper concludes that variability accounting can serve as a source of inspiration for constructors of ABC systems when the various versions are merged into an integrated cost system based on intercon-nected databases. It is also concluded that those variability accounting users with complex sales/distribution and production structures may find inspiration in ABC to identify areas in need of improved behaviour, although more research is required in this area.     

A political economy model of road pricing

In this paper, we use a simple majority voting model to study the introduction of urban congestion tolls. The model allows for different types of uncertainty and considers different uses of the toll revenues. The following results are obtained. First, we show that individual uncertainty with respect to modal substitution costs may imply that a majority votes against road pricing ex ante, although a majority would have been in favor after its introduction ex post. Moreover, if a majority is against road pricing ex ante, there will also be no majority for organizing an experiment that would take away the individual uncertainty. Second, political uncertainty with respect to the use of the revenues corroborates the finding that ex ante more voters will be against the introduction of tolls. Third, both types of uncertainty suggest that fewer voters are against road pricing when toll revenues are used to subsidize public transport than when they are redistributed to all voters. Importantly, the results of this paper are consistent with a number of recent empirical observations on efforts to introduce road pricing, including the systematic rejection of road pricing in referenda, the more favorable attitudes towards road pricing after than before its introduction, and tying the toll revenues to support public transport.     

The opportunity costs of commuting: the value of a commuting satellite account framework with an example from Lisbon Metropolitan Area*

Commuting affects regional and urban economies. It shapes urban areas, defines their relationships with neighboring regions, intensifies economic flows and exacerbates energy consumption and greenhouse gas emissions. This paper sets out a proposal for an innovative commuting satellite account (CSA), integrated in a multi-regional input–output model. This framework combines commuting activities with regional distribution of income, distinct household consumption structures, real estate renting activities and the energy consumption and environmental flows incorporated in the different industries. To assess the opportunity costs of commuting, the CSA framework is applied to the Lisbon Metropolitan Area. The socio-economic-environmental impacts of a scenario in which commuters become non-commuters by moving their residence to the municipality in which they work are estimated. The analysis indicates that: commuting, in general, induces significant economic and environmental opportunity costs. Finally, the adoption of policy-oriented recommendations contributing to limit sprawling in metropolitan regions is discussed.     

Water losses and hydrographical regions influence on the cost structure of the Portuguese water industry

Despite the growing research about water utilities, some questions still remain to be solved on the supply side, which are frequently absent from empirical studies based on the estimation of cost functions. This paper aims to fill to some extent this gap in the literature by focusing the consequences of water losses reduction and the management of water resources based on their availability at an integrated river basin level. Major findings derived from the estimation of a multiproduct cost function suggest advantages from reducing water losses, given that an adjusted measure of economies of scope, adapting the fact that water lost cannot be sold, reveals that there are small diseconomies of scope. In addition, generally the variables related to the hydrographical regions used have significant effects on water costs. Since the outcomes also reveal the existence of economies of scale, more concentration in the Portuguese water industry at the retail level would be beneficial.     

Tax expenditures and other programs to stimulate housing: Do we need more?

Discussions to aid the housing industry raise several questions. First, does stimulation of housing demand require new direct subsidy programs? And, second, are any programs to increase demand worth their costs to society? The results in this paper indicate that the answer to both questions is no: the existing subsidy to homeownership in the tax code is, when combined with mortgage instruments that offset cash flow problems, fully capable of generating large increases in demand at the cost of significant tax expenditures; and the social benefits of increased housing demand are shown to be worth only about 60% of their costs. Consequently, increasing housing demand can be readily achieved, but doing so will be costly to the government and inefficient for society.     

A transshipment model for distribution and inventory relocation under uncertainty in humanitarian operations

The number of disasters and humanitarian crises which trigger humanitarian operations is ever-expanding. Unforeseen incidents frequently occur in the aftermath of a disaster, when humanitarian organizations are already in action. These incidents can lead to sudden changes in demand. As fast delivery of relief items to the affected regions is crucial, the obvious reaction would be to deliver them from neighbouring regions. Yet, this may incur future shortages in those regions as well. Hence, an integrated relocation and distribution planning approach is required, considering current demand and possible future developments.For this situation, a mixed-integer programming model is developed containing two objectives: minimization of unsatisfied demand and minimization of operational costs. The model is solved by a rolling horizon solution method. To model uncertainty, demand is split into certain demand which is known, and uncertain demand which occurs with a specific probability. Periodically increasing penalty costs are introduced for the unsatisfied certain and uncertain demand. A sensitivity analysis of the penalty costs for unsatisfied uncertain demand is accomplished to study the trade-off between demand satisfaction and logistical costs. The results for an example case show that unsatisfied demand can be significantly reduced, while operational costs increase only slightly.     

Electricity derivatives pricing with forward-looking information

In order to increase overall transparency on key operational information, power transmission system operators publish an increasing amount of fundamental data, including forecasts of electricity demand and available capacity. We employ a fundamental model for electricity prices which lends itself well to integrating such forecasts, while retaining ease of implementation and tractability to allow for analytic derivatives pricing formulae. In an extensive futures pricing study, the pricing performance of our model is shown to further improve based on the inclusion of electricity demand and capacity forecasts, thus confirming the general importance of forward-looking information for electricity derivatives pricing. However, we also find that the usefulness of integrating forecast data into the pricing approach is primarily limited to those periods during which electricity prices are highly sensitive to demand or available capacity, whereas the impact is less visible when fuel prices are the primary underlying driver to prices instead.     

Vertical structure and the risk of rent extraction in the electricity industry

This paper studies how competition and vertical structure jointly determine generating capacities, retail prices, and welfare in the electricity industry. Analyzing a model in which demand is uncertain and retailers must commit to retail prices before they buy electricity in the wholesale market, we show that welfare is highest if competition in generation and retailing is combined with vertical separation. Vertically integrated generators choose excessively high retail prices and capacities to avoid rent extraction in the wholesale market when their retail demand exceeds their capacity. Vertical separation eliminates the risk of rent extraction and yields lower retail prices.     

Optimal highway design and user welfare under value pricing

This paper investigates the optimal design of highways operated under a form of congestion pricing called value pricing. Value pricing involves dividing a highway into free and priced lanes so that in equilibrium the highway effectively operates at two levels of service, with those users placing a higher value on travel time savings selecting the faster, priced route. A tractable analytical framework is developed which allows analysis of equilibrium and welfare on value priced highways when users vary in their value of time. The model is used to characterize optimal toll and capacity policies, as well as investigate the fiscal implications of value pricing. The analysis concludes with results on how welfare changes induced by value pricing are distributed over the population of users when the government finances any funding shortfall through a non-discriminatory taxing mechanism. A realistic numeric example is used to illustrate how the model can be applied to evaluation of actual and proposed value pricing implementations.     

Full fixed cost recovery lot sizing with quantity discounts

Purchasers must often make lot sizing decisions when facing price schedules of price-quantity discounts. It is important to determine the supplier's pricing philosophy when establishing a solution procedure.One approach is to evaluate total costs at all of the appropriate break points. This offers limited information: a lot size and a set of total costs. This is especially true in the case of full fixed cost recovery pricing. In actual practice price schedules can be extremely lengthy: indeed, it may be in the supplier's best interests to offer comprehensive discount schedules. This situation complicates the purchaser's decision making process.An efficient alternative, which solves the price-quantity discount problem when the supplier insists on a full fixed cost recovery schedule, is presented. Computations are reduced to a few simple steps; the result is a least total cost lot size for a simple linear package price model given parameters obtained by an appropriate analysis of the supplier's price-quantity discount schedule. A starting point is determined and the choice of the lot size is made using a simple criterion. Rapid convergence is assured, given a reasonably well-behaved schedule.     

The performance of coal-burning electric generating units in the United States: 1960–1980

This paper studies determinants of the thermal efficiency and reliability of coal-burning electric generating units using a new, comprehensive, unbalanced panel data set. For two major technological groups consistent and efficient estimates are obtained of the effects of unit age, vintage, scale, operating practices, and coal quality. Large utilities integrated into design and engineering appear to obtain superior unit performance. Implications of our results for life-cycle generation costs, regulators' performance norms, and the complex pattern of technological change in this industry are discussed.     

中国能源结构低碳化转型的政策分析

本文构建了中国能源-经济社会核算矩阵,使用SAM账户乘数分析方法探讨可再生能源电力产业在经济结构中的特征,部门扩张对其他经济部门的影响.同时利用SAM价格乘数研究不同的能源价格政策对经济系统的影响,结果表明政府采用对煤炭收取碳税的同时,对可再生能源电力产业进行补贴的价格政策是有效的.可再生能源电力产业的发展对经济结构的优化和能源结构低碳化转型有着积极作用,并能够降低成本推动型通货膨胀的发生风险.     

A Modelof Competitive Limit Pricing

This paper offers a new theory of limit pricing. Incumbents from different markets or regions "compete" against one another, with each attempting to price in a manner that deflects entry into the others' markets. An entrant is imperfectly informed as to the incumbents' respective investments in cost reduction and seeks to enter markets in which incumbents have high costs. In a focal equilibrium, the entrant uses a simple "comparison strategy," in which it enters only the highest-priced markets, and incumbents engage in limit-pricing behavior. The influence on pricing of the number of markets and the scope of entry is also reported. Throughout, the central feature of the analysis is that an incumbent's price affects its investment incentives, with lower prices being complementary to greater investment.     

Measuring strategic environmental performance

It is now widely acknowledged that environmental issues will increasingly affect the performance of firms in western countries, both in the short and in the long run. Environmental issues can act on revenues and on costs. They can influence revenues when a firm follows a ‘green strategy’, i.e. it enhances the characteristics of environmental compatibility of its products or it promotes a credible image of a ‘green company’, that employs only clean technologies. They can influence costs as, on the one hand, more limiting environmental standards can result in higher manufacturing and non manufacturing costs and, on the other hand, programmes focused on improving environmental performances can result in less spoils and wastes, hence in lower costs. Hence, environmental performance should be a structured part of the management control system of an industrial firm. Unfortunately, it is not completely clear how accounting information can be structured in order to obtain this result. This paper is aimed at developing a set of information that can be used for a managerial control focused on the environmental performance of an industrial firm. This paper is organized in three main sections. Section I describes the conceptual requirements of a management control system based on accounting information for monitoring the environmental performance of an industrial firm (completeness, long term orientation, external orientation, measurability and cost). Section II analyses different classes of Environmental Performance Indicators (EPI) used in practice. Both accounting measures (prevention costs and investments; operating environmental costs; contingent environmental liabilities) and non financial measures (physical indicators; compliance) are considered. Section III suggests an integrated approach to the design of a management control system focused on environmental issues, where different classes of indicators are used jointly. More specifically, two integrated systems, one mostly based on physical measures and aimed at external communication, the other focused on accounting measures and supporting managerial decision making, are suggested.