Product variety and firm survival in the microcomputer software industry

This article provides an analysis of product variety and scope economies in the microcomputer software industry by using detailed firm‐level and product‐level information on firms' bundling of functionalities over application categories and computing platforms. We find that the management of product variety through the way different application categories are integrated in products and the platforms on which these products are offered can be as important as the significance of scope economies at the more aggregated firm level. Specifically, we find that there is little evidence of firm benefits from economies of scope in production, but there is substantial evidence that products benefit from economies of scope in consumption. In addition, we find that firms with products that encapsulate more application categories perform better, and those with products that cover more computing platforms perform worse. Finally, changes in product variety through new product introductions improve firm performance, but extensions to existing products hinder the performance of the firm and the product. We conclude that research in scope economies can benefit from a more detailed model of the evolution of product variety that includes data and analysis at the firm level and at the product level. Copyright © 2004 John Wiley & Sons, Ltd.     

Production costs, scope economies, and multi-client outsourcing under quantity competition

Two game models are developed based on production costs and scope economies to investigate the widely observed multi-client outsourcing (MCO) phenomenon. Analytical results demonstrate that outsourcers’ high in-house production costs and the advantage of scope economies motivate firms to outsource collectively to an independent vendor. Under certain conditions, if both firms make their outsourcing decisions simultaneously, collective outsourcing is one of the two equilibria; if both firms make decisions sequentially, collective outsourcing becomes the unique equilibrium. Furthermore, the comparative statics of the critical degree of scope economies are examined for the occurrence of MCO with regard to diverse market parameters. Finally, it is proved that market prices decrease as the degree of scope economies increases when MCO occurs. This research helps explain some widely observed phenomena such as malls, supply chain cities, and the China price.     

Economies of Scale and Scope in Australian Telecommunications

This paper employs a composite cost function toexamine the cost structure of Australian telephoneservices. The composite cost model combines thelog-quadratic input price structure of the translogmodel with a quadratic structure for multiple outputs. Quadratic output structures permit the measurement ofeconomies of scale, economies of scope, andsubadditivity without prejudging their presence. Model estimates, on Telstra system data from 1926 to1991, show that the production of Australian telephoneservices exhibits economies of scope but no rayeconomies of scale.     

Stock market reactions to related diversification moves by service firms seeking benefits from information asymmetry and economies of scope

Service firms may seek benefits from information asymmetry and economies of scope by diversifying. Each source of benefit is based on different underlying mechanisms and each is affected differently by implementation difficulties and service characteristics. Previous research, however, has not analyzed the relative performance effects of these two very different sources of benefits for related diversified service firms. Thus, this paper uses an integrative framework including these aspects to examine the relative performance effects of benefits from information asymmetry and economies of scope in service firms.     

The sufficiency of product and variable costs for production-related decisions when economies of scope are present

This article examines the usefulness of product and variable costs for pricing, product mix, and capacity expansion decisions when economies of scope are present. A numerical example demonstrates that the sufficiency of product and variable costs are diminished when economies of scope are present, even under economic conditions that are the most conducive for product and variable costs to lead to an optimal decision. Further analysis of production-related decisions with hard constraints indicates that the usefulness of variable costing incorporating the effect of a bottleneck activity is also diminished when economies of scope are present. Since economies of scope are one of the primary conditions necessary for firms to produce multiple products in a competitive economy [Panzar, J., Willig, R., 1981. Economies of scope. American Economic Review 71 (2), 268–272], the findings of this article bring into question the sufficiency of product and variable costs for production-related decisions.     

中国商业银行规模经济与范围经济的实证分析

本文通过对中国商业银行1996年到2001年的经营情况进行实证分析，估算出各家银行的规模经济系数和范围经济系数，发现大部分商业银行规模不经济而范围经济，规模不经济的程度与银行资产规模呈正相关关系，股份制商业银行的范围经济系数高于国有商业银行的范围经济系数，范围经济与银行资产规模没有必然的联系。在此基础上，本文提出了相应的政策主张。     

Diversification,coordination costs,and organizational rigidity: evidence from microdata

This paper examines the impact of coordination costs and organizational rigidity on the returns to diversification. The central thesis is that coordination costs offset economies of scope, while organizational rigidity increases coordination costs, further constraining economies of scope. The empirical tests of this proposition identify the effects of coordination and organizational rigidity costs on business unit and firm productivity, using novel data from the Economic Census on taxicab and limousine firms. The key results show that coordination and organizational rigidity costs are economically and statistically significant, while organizational rigidity itself accounts for a 16 percent decrease in paid ride‐miles per taxicab in incumbent diversifiers, controlling for the other costs and benefits of diversification and incumbency. The findings suggest that coordination costs, in general, and organizational rigidity costs, in particular, limit the scope of the firm. Copyright © 2010 John Wiley & Sons, Ltd.     

Asset specificity and economic organization

This paper examines the optimization problem of firm and market organization in which both production cost and transaction cost differences are expressed as a function of asset specificity. In general, markets enjoy advantages by aggregating the demands of many buyers, thereby realizing economies of scale or scope. Such production cost savings need to be assessed in relation to the transaction cost advantages that internal organization sometimes enjoys over markets in adapting to changed circumstances. As it turns out, both production cost economies and the transaction cost differences between firm and market organization vary systematically with the characteristics of the investments. This paper employs a unified framework to assess the choice of organization form. The condition of asset specificity is featured.     

Productivity,scale economies and technical progress in the Canadian life insurance industry

The purpose of this paper is to examine the productivity performance of the Canadian life insurance industry. We construct a measure of total factor productivity for life insurance companies and then attempt to determine the main sources of improved productivity during the period 1961–1977 by pooling time-series and cross-section data from 31 firms. We conclude that for the industry as a whole technical progress was by far the most important source of productivity growth, while scale economies, on balance, had a marginally negative impact.     

中国制造业产业集聚的实证研究

文章利用集中度、基尼系数、赫芬达尔指数(N指数)等指标,对中国20个二位数制造业门类的集聚性进行了实证研究,并对其中5个门类进行了细化研究,得出结论:中国部分制造业已显现出较强的集中性,且主要集中在东部沿海省市,但一些规模经济和范围经济性强、在国外具有显著集聚特征的行业的集聚性还比较低。     

Vertical and Horizontal Scope Economies in the Regulated U.S. Electric Power Industry

This paper investigates vertical economies between generation and distribution of electric power, and horizontal economies between different types of power generation in the U.S. electric utility industry. Our quadratic cost function model includes three generation output measures (hydro, nuclear and fossil fuels), which allows us to analyze the effect that generation mix has on vertical economies. Our results provide (sample mean) estimates of vertical economies of 8.1% and horizontal economies of 5.4%. An extensive sensitivity analysis is used to show how the scope measures vary across alternative model specifications and firm types.     

Competitiveness and technical efficiency: Determinants in the groundnut oil sector of India

India imports about half of its domestic consumption needs of edible oils. Groundnuts are a major source of edible oils in India. One of the central problems of groundnut production and processing is huge inefficiencies due to an uncertain production environment owing to rainfed cultivation, the low resource base of smallholder farmers and processors, and the low adoption rates of improved technology. This paper addresses critical issues that impair the groundnut sector’s international competitiveness and efficiency. The paper uses primary data collected from Indian farmers and processors of groundnuts to measure efficiency, and it suggests policies for reducing yield gaps and increasing efficiency. Specific policies suggested from the study are (a) the harnessing of improved varieties with attributes like drought tolerance, high oil content, high productivity for large-scale seed multiplication and distribution by public and private agencies; (b) viable village seed banks and seed networks through cycles of post-rainy season seed multiplication to meet the seed requirements in the rainy season and vice versa; (c) adoption of low-cost technologies to increase profitability and reduce risk; (d) oilseed clusters to facilitate scale and scope economies in processing units; and (e) capital subsidies to accelerate technological upgrading to shed inefficiency in the processing sector. The expected gains in efficiency in the production and processing of oilseeds are expected to result in producer and consumer gains which would justify the proposed incentives for seeds and for technological upgrading in the processing sector.     

The Impact of Frictions in Routine Execution on Economies of Scope

Research summary: Based on a detailed database of a beverages producer‐distributor that expanded its product variety by leveraging its logistic network, we show that product diversification generates economies of scope and also higher operational costs. The result is an inverted‐U relationship between variety and productivity: When the firm offers few additional categories, productivity grows, but as the number of categories rises, the costs of executing the operational routines increase rapidly and productivity falls. The negative effect on productivity increases if the added product category is more dissimilar to previous ones, and decreases with learning from operational experience. Our results highlight how frictions at the operational level can limit the benefits of diversification, even in the absence of other sources of diseconomies, such as increased coordination needs. Managerial summary: One of the prevalent reasons for companies to expand to adjacent product lines is attaining economies of scope. However, such growth strategy also generates operational frictions, even if the day‐to‐day routines do not appear to change at all. Product diversity is disruptive for routine execution, as it requires coordination and exception handling, and may ultimately overcome any efficiency obtained from growth. We estimate the relevance of such operational friction using data from a beverages distribution network. When product variety is low, additional categories do generate efficiency, but after reaching a given threshold, friction prevails. We find that operational friction increases when products are more dissimilar, but is attenuated when workers learn from their own and other's experience. Copyright © 2017 John Wiley & Sons, Ltd.     

A mathematical programming approach to evaluating alternative machine clusters in cellular manufacturing

Cellular manufacturing systems achieve the economies of scope and scale approaching that of flexible and high-volume production when the machine/part clusters are totally independent of each other. However, most real systems contain bottleneck machines and exceptional parts (exceptional elements) that reduce these economies. Many grouping methods have been proposed for creating the initial machine/part cells where the presence of exceptional elements may greatly affect their performance. Furthermore, multiple alternative solutions are often possible for a given grouping algorithm. In this paper, the previous work dealing with exceptional elements is reviewed. A mathematical programming model used for comprehensively dealing with exceptional elements is investigated. The effect of alternative initial machine/part clusters on the total cost is evaluated. It is demonstrated that the mathematical programming model can provide useful information in making trade-off decisions when exceptional elements are present.     

Economies of Scope and Density in the Market for Real Estate Brokerage Services

Using a multiproduct translog cost function, this paper examines the case for economies of scope and density in the market for residential real estate brokerage services. Earlier research that treated output as a homogeneous commodity reported modest economies of scale for this industry. The results of this study suggest that the composition of output is an important source of these scale economies, rather than simply the size of the firm. The economies of scope which we find imply that a balanced mix of listing and sales is the least costly type of operation, a result borne out by the product mix found in our sample. The results also show product-specific diseconomies of scale, suggesting that specialization in either listing or sales may be sub-optimal under the current institutional arrangements present in the market. Finally, market density appears to be, at best, only a nominal source of savings for real estate brokerage firms.     

Inter‐temporal economies of scope,organizational modularity,and the dynamics of diversification

The question of whether corporations add value beyond that created by individual businesses has engendered much debate in recent years. Some of this debate has focused on the pros and cons of related vs. unrelated diversification. A standard explanation of the benefits of related diversification has to do with the ability to obtain intra‐temporal economies of scope from contemporaneous sharing of resources by related businesses within the firm. In contrast, this paper deals with inter‐temporal economies of scope that firms achieve by redeploying resources and capabilities between related businesses over time, as firms exit some markets while entering others. The transfer of resources due to market exit distinguishes our treatment of inter‐temporal economies of scope from standard intra‐temporal economies of scope. In addition, these inter‐temporal economies can benefit from a decentralized and modular organizational structure. This ability to obtain inter‐temporal economies of scope via organizational modularity and recombination suggests that corporations do not necessarily need a high degree of coordination between business units in order to benefit from a strategy of related diversification. Copyright © 2004 John Wiley & Sons, Ltd.     

自然垄断产业垄断的"自然性"探析

一般认为,在自然垄断产业中的竞争性业务领域中,应当放松管制,引入竞争,而网络部分的生产经营则依然是自然垄断的领域,政府在这一领域仍然要实行进入管制,限制竞争,以获取规模经济或范围经济带来的利益。本文认为,在自然垄断领域中是否应当保持进入管制政策,不能简单地按照传统的理论假设进行推论,而是要对有关产业管制的成本和收益进行实证分析。本文提出了应当在自然垄断领域内引入竞争的理论假说,并用电信产业的统计数据对这个假说的理论模型进行了验证。     

Economies of scope within market frameworks

The purpose of this paper is to look at the circumstances under which a market organised to take advantage of economies of scope is superior to one neglecting these but as a consequence involving less monopoly power. The question is investigated theoretically by means of two simple models in order to obtain insights into the main forces involved. It transpires that if cross-elasticities of demand are low relative to own-price-elasticities then gaining economies of scope is likely to be worthwhile from society's viewpoint, otherwise not.     

Determinants of economies of scope in retail

This paper studies the determinants of economies of scope and quantifies their impact on the extensive and intensive product margins in retail. We use a framework based on a multiproduct technology to model stores’ incentives to expand product variety. Using novel Swedish data on product categories and stores, we find that high-productivity stores offer more product categories and sell more products of all categories. Stores with high-demand shocks specialize in fewer product categories and sell more products of top-selling categories. Policy simulations of regional programs that target the determinants of economies of scope show that investment subsidies and mentoring support for low-productivity stores increase the number of product categories and sales per product category, especially benefiting stores in rural markets.     

Technological diversity,related diversification,and firm performance

Previous findings that related diversification creates value have been called into question over concerns about methodology and measures. Reviewing existing theory to consider how a firm's knowledge base interacts with its product market activity, I address several of these concerns by creating a measure of technological diversity based on citation‐weighted patents. The measure indicates a firm's opportunity for corporate diversification based on economies of scope in valuable knowledge assets, is defined for both single‐ and multibusiness firms, and is not correlated with more fundamental aspects of diversification, such as the number of businesses in the corporate portfolio. Evidence from a large sample of firms shows the positive relationship between diversification based on technological diversity and market‐based measures of performance, controlling for R&D intensity and capital intensity as further indicators of the type of assets underlying diversification. Results hold when controlling for the endogeneity of diversification and performance in a cross‐sectional sample or when controlling for unobserved factors using panel data. Copyright © 2006 John Wiley & Sons, Ltd.