A multiproduct Symmetric Generalized McFadden cost function

This paper introduces a flexible multiproduct cost function that permits zero values of one or more of the outputs and can impose restrictions quite easily, if not automatically satisfied, to ensure global concavity property. It satisfies linear homogeneity (in prices) property and is flexible in the output space. Thus the function is ideal for estimating, for example, economies of scope, cost complementarity, product-specific returns to scale, etc., without worrying about zero values of output(s) and extrapolations to points far from the point of approximation. As an empirical application, we use panel data (1978–1985) on 12 Finnish foundry plants to estimate technical progress, overall returns to scale, product-specific returns to scale and economies of scope.     

Public spending and economies of scale in partial fiscal decentralized governments: The case of Chile

This article evaluates economies of scale in local public spending in Chile, emphasizing the country's geographical features and high fiscal heterogeneity. We leverage balanced panel data for ten years and 307 municipalities in order to estimate the population level at which a reduction in the average cost of local public goods provision occurs and to differentiate between levels of market potential. We follow a theoretical model of cost efficiency that considers spatial interactions and spillover effects among neighboring jurisdictions. Our findings suggest that Chilean municipalities reach an optimum population level at around 700,000 inhabitants, which is high considering that only two cities qualify. When differentiating for levels of economies of scale according to levels of market potential, municipalities with a low potential reach their optimum at around 28,000 inhabitants, those with a medium potential reach it at approximately 124,000, and those with a high potential reach it at approximately 680,000.     

Efficiency in the provision of university teaching and research: An empirical analysis of UK universities

A flexible three-output, two-input cost function model is used to examine the cost efficiency of UK universities as producers of teaching and research ‘outputs’. Unlike previous studies, a comprehensive peer review of research quality is incorporated. Overall, product-specific and input-specific economies of scale, global and product-specific economies of scope, marginal costs and cost complementarities are estimated. Overall and product-specific scale results indicate considerable increasing returns, while the scope results generally suggest neither economies nor diseconomies. Sensitivity analysis is used to simulate the impact of current government policy, regarding the expansion of undergraduate teaching output, on these results.     

The cyclical nature of markups in Canadian manufacturing: A production theory approach

In this paper the effects of cost and demand characteristics on the magnitude and cyclical behaviour of markups in Canadian manufacturing are measured within a production theory framework. Price to marginal cost ratios for various manufacturing industries are computed, and the impact art their secular and cyclical trends from changes in capacity utilization, scale economies, variable input prices, import competition, unemployment and other exogenous market and technological determinants are explored using adjusted markup indexes and elasticities. The measured price margins seem weakly procyclical. Further, evaluation of the determinants of these cycles suggests that the procyclical nature of markups is primarily related to exogenous factors affecting costs such as energy price ‘shocks’, and that cost characteristics underlying scale economies provide a countercyclical influence that counteracts the profitability arising from markups.     

Returns to scale in the United States intercity bus industry

This paper has taken into account the a priori restrictions available from neoclassical cost theory in evaluating the relationship between cost and the level of output and input prices for U.S. intercity bus service. A general translog cost function is used which allows tests of the degree of returns to scale, homotheticity and non-constant elasticities of substitution among input pairs. Major empirical findings are: (i) the intercity bus service can be modeled by a homothetic production function, (ii) operators can substitute labor for capital by using vehicles more extensively, (iii) there are potential economies of scale in the provision of intercity bus service, and (iv) the Cobb-Douglas functional form used in earlier studies of the industry is inappropriate.     

Economies of scale after deregulation in LTL trucking: a test case for the survivor technique

Early critics of motor carrier deregulation believed that the policy was unwise because strong economies of scale would lead to harmful market concentration, particularly in the industry's LTL segment. Using two methodologies, the survivor technique and the trans‐log cost function, this study finds that economies of scale do extend across the entire spectrum of firm sizes in LTL trucking. Long‐run average cost appears to decline mildly and at a diminishing rate with increases in firm size, however, such that any cost advantage for larger firms has been insufficient to eliminate new entry and competition from smaller rivals. As a result, after the first 20 years of deregulation, the corresponding increase in market concentration has also been mild. Moreover, the consistency of results from the two methodologies gives credibility to the survivor technique as an empirical method of identifying economies of scale. Copyright © 2008 John Wiley & Sons, Ltd.     

FLEXIBLE COST FUNCTION ESTIMATES FOR A GAS AND FUEL CORPORATION IN AUSTRALIA

This paper reviews and empirically tests the available evidence concerning economies of scale and technological change at Australian Gas Limited of New South Wales (AGL). a gas and fuel corporation. Since energy corporations are considered to need scale economies, they are regulated 'n both developed and developing countries. In keeping with the trend of deregulation stemming from the beginning of the 1980s in Western countries, many kinds of public corporations have been privatized and deregulated. Energy corporations are not an exceptional case, but very little evidence on this industry has been reported so far. From empirical tests, it is shown in a trans-log-type cost function that AGL has scale economies. the degree of which increased after the corporation changed its energy source from coal oil to liquid natural gas. Moreover, from the results of the trans-log cost function including technological change, a Hicksian neutral type technical progress exists. In a Hicksian non-neutral type, stock-intensive technical progress exists. while labor productivity deterioates. Energy productivity is not significant.     

Wage determination in urban Russia: Underpayment and the gender differential

A stochastic frontier wage equation is employed to examine labor-market efficiency and estimate workers’ potential wages in Russia after a decade of economic reforms using a nationally representative household survey. Dynamic monopsony underpayment, defined as the differences between the highest wage a worker with given characteristics could earn and the worker's actual wage, is a significant factor lowering real wages. The estimated degree of underpayment differs significantly depending on gender and substantially exceeds the estimates for Western economies. Workers’ potential wages are elastic with respect to the local cost of living. Women's mean potential wage is only 58% of men's.     

SPATIAL INTEGRATION OF URBAN WATER SERVICES AND ECONOMIES OF SCALE

This research attempts to analyze economic effects of spatial integration of urban water service markets in Korea, employing the notion of economies of scale in terms of cost-effectiveness. The economies of scale are measured by the elasticity of supply with respect to the production cost from the translog cost function of urban water supply enterprises. It was found that the economies of scale in most urban water utility firms of Seoul Metropolitan region have continuously increased during the period 1989–1994. While the economies of scale would be hardly influenced by the changes in population density, they would tend to decrease marginally in response to the rise in employment density. If the urban water markets of the Seoul Metropolitan Region were consolidated into a single water service market without any changes to the current spatial network of water supply and regional economic attributes, the production cost would be reduced up to 47.1 percent of the actual cost in 1994. Those savings would be enough to make up for the financial deficit of the water production of the Seoul Metropolitan Region.     

Unraveling the dynamic changes of high-speed rail network with urban development: Evidence from China

Previous studies have used complex network theory to examine the characteristics of China's High-Speed Rail (HSR). Nevertheless, little attention is paid to China's HSR network's dynamic evolution and the coevolution of node attributes and embedded structural characteristics. Our study builds China's HSR network using a complex network approach and spatial analysis technique to address this issue. Additionally, we employ a stochastic actor-oriented model (SAOM) to properly decompose the three types of effects on the generation of China's HSR network (i.e., network structure, attribute-based similarity, and exogenous control variables). This study discusses the underlying hypotheses and indicates that 3-cycles is a critical structural factor for the formation of China's HSR network. In terms of the effects of attribute-based similarity, cities with similar Gross Domestic Product (GDP) and geographical proximity are essential nodal drivers for the evolution of the HSR network. Notably, the administrative rank of cities exhibits a significantly negative driving force and a alter effect. These findings shed light on the interactive process of urban regional development and the dynamic evolution of the HSR network, assisting the central and local governments in enacting and implementing appropriate HSR planning policies, ultimately achieving effective urban planning and management.     

Costs,technology and ownership of gas distribution in Italy

This paper proposes an empirical study of the Italian gas distribution industry by means of long‐term cost function. The analysis highlights the fact that the number of customers is more important than the amount of gas delivered in explaining the variability of distribution costs. Very low economies of scale, high economies of density, and the significant role of the morphologic and demographic variables characterize the nature of the technology. Better performance for private operators indicates that the privatization process should continue and the low degree of economies of scale confirms the benefits of having many operators (yardstick competition). Copyright © 2000 John Wiley & Sons, Ltd.     

Efficiency of Regional Public Investment: An NPV-Based Spatial Econometric Approach

This paper develops a new methodology of spatial econometric modelling for regional public investment in local economies. The approach, based on the financial concept of net present value of cash flows, can be applied in the analysis of regional public investment with long-term financial inputs and outputs. With local public revenues related to spending in the model, one can observe economies of scale of investment with possible saturation effects and a marginal investment multiplier, explaining the extent to which public investment costs translate into public revenues. The main advantage of the proposed model is to behave counter-cyclically due to accumulation over the periods and to cover multi-period investments as well as postponed effects. This paper gives an example of public investment efficiency in Polish NUTS-5 municipalities regions.     

The Structure of Municipal Water Supply Costs: Application to a Panel of French Local Communities

Network losses and returns are importantissues for water resource management, that are addressed in thispaper by modeling the structure of production for municipal waterutilities with two outputs: water sold to final customers andwater network losses. We propose a measure of economies of scopeto assess the benefit associated with joint production of waterfor final customers and water losses, and several measures ofreturns to evaluate potential gains in exploiting technologicalflexibility of water networks. We estimate the cost structureof water utilities using a GMM procedure with a Translog costfunction and panel data. Estimation results reveal a positivedegree of economies of scope, and short-run returns to productiondensity and returns to customer density that are not significantlydifferent from 1. Significant economies of scale indicate thatlocal communities may benefit from merging into water districts.     

Sector fragmentation and aggregation of service provision in the water industry

This study analyzes the structure of the water industry in Peru. It investigates economies of scale and cost inefficiencies in 43 water providers during the years from 1996 to 2005. Different water sources in different geographical regions directly affect the production technology of the sector, making a regional cost frontier model appropriate. In 2005, 48.7% of the population of Peru lived in poverty, and 43.87% of the water produced was lost. These large proportions support the assumption that water producers allow water to be lost as a way to satisfy the water demands of the poorest segment of the population. Findings indicate a cost rise of 0.10% for each 1% increase of joint production of both outputs: water lost and produced. This result may be suggestive of a price the utility pays for allowing unauthorized connections in the network. From the perspective of the board of directors, this cost increase is the political cost of gaining municipal votes from the poorest segment of the population. Economies of scale are larger for utilities operating in the forest than in other regions. This has important implications for any future consolidation process that may be undertaken when the sector is opened to private participation.     

Productivity differences in multiple output industries: An empirical application to electricity distribution

Given that electricity distribution is undertaken via a network, it is expected that costs of production are affected both by the nature of the network and the volume of physical output distributed via the network. This two-dimensional concept of firm size, that is involving network size (number of customers) and the level of physical output (kWh), also corresponds to the distinction between productivity measures of returns to density and returns to scale.This approach has been used to specify a restricted multioutput cost function and to estimate this function for the Norwegian electricity distribution industry through the use of a flexible functional form (translog). The results indicate that no economies of scale are present in the industry even for small plants when measured correctly, but that economics of density are present.     

Factor substitution in the production of library services: evidence from the North American research libraries

Economic analysis provides a rigorous foundation for the investigation of production activity, but relatively little attention has been given to service activities. This paper examines the technology of library services. Previous studies of library economics have focused mainly on economies of scale. The model proposed identifies scale economies, together with the substitution relationships among three categories of library staff, which are inferred from estimates of the cost function of 92 research libraries. For all categories of employees there is evidence of substitutability, but the demand for librarians is inelastic and the substitution possibilities weak. Student assistants are relatively strong substitutes for support staff and to a limited degree may be substituted for trained librarians. Copyright © 2006 John Wiley & Sons, Ltd.     

‘The Institutions and Governance of Economic Reform'1

This articls uses the reform of New Zealand's state-owned enterprises from 1984–1995 to highlight two lessons for public sector reform from New Institutional Economics. First, failure to apply agency, property rights and transaction cost theory in tandem can lead to time-consuming pauses and policy shifts in a reform programme. Second, a discriminating alignment between the institutional environment and the regulatory governance structure chosen is crucial for successful privatization in industries characterized by economies of scale, large non-redeployable investments and extremely political output such as telecommunications and electricity.     

On the determinants of foreign ownership shares: Evidence from US firms' joint ventures in Japan

It is often argued that firms' foreign expansion is motivated by economies of scale in information-based intangible assets. Since these assets are combined with local factors in real production, their owner often has to deal with local factor owners' opportunistic behavior such as siphoning of skills which reduces the return on intangibles to the original owner. Local factor owners' agency behavior can also reduce a subsidiary's profit. Maintaining ownership mitigates the former type of opportunistic behavior, while ceding ownership reduces the latter type. Hence there is a non-linear relationship between ownership and the cost of control. In this paper we present a model that incorporates these aspects of a joint venture ownership. In our model the share in a joint venture of a foreign parent firm with a superior technology is determined such that its marginal cost of control is set equal to the marginal benefit it derives from a joint venture. We assume that, because of the uniqueness and mobility of its intangible factor, the foreign partner has more bargaining power than its local counterpart regarding the ownership of their joint venture and that the local partner is less concerned than its foreign counterpart about the problems of agency and property rights protection because of its geographic and cultural proximity to the joint venture. As a consequence, the foreign partner is able to exert its preference for its ownership share in the joint venture. Our theoretical results allow a decomposition of ownership share into components explained by the cost of control and by the profitability of a joint venture. Our empirical results using data on technology-based US firms' subsidiaries in Japan are consistent with our model predictions. In particular, the fraction of ownership share explained by the cost of control relative to the fraction explained by intrinsic profitability is higher for industries that rely more heavily on intangible assets, as expected from the model.     

Scale and scope economies of Japanese private universities revisited with an input distance function approach

This paper examines the scale and scope economies of higher education institutions in Japan assuming the presence of productive inefficiency. The standard approach to testing the scope economies is to apply the cost function. However, the cost function approach often entails the difficulty of obtaining reliable data on input prices, especially the input prices of capital for higher education institutions. This paper proposes a duality approach based on the input distance function. The scope economies are tested under a necessary and sufficient condition by retrieving the costs of joint and separate production from the input distance function. We apply the testing procedure to data pertaining to 218 Japanese private universities in 1999 and 2004. The results indicate the scale economies and the scope diseconomies.     

The temporal behavior of scale economies within A banking firm

Examining the time path of the scale economies has not received much attention until recently. Moreover, the time path of scale economies for a given firm has not been studied in the banking literature at all. Examining scale economies, either from cross-sectional or panel data, based only on a single estimate ignores the dynamic behavior (both cost- and production-wise) of a banking firm as well as of the banking industry. We study the time-varying scale economies of commercial banking firms. We employ the Kalman-filter approach in estimating the translog cost function. The Kalman filter allows the parameters of the translog cost function and therefore the scale economies to be time dependent and varying. The estimation results indicate significant variation in inter- and within-firm scale economies over time for sample banks.