多元化经营与多元化折价--企业多元化研究的新进展

对多元化经营的讨论是传统金融学的一个重要议题。一致的共识是多元化经营会损害企业价值，多元化企业存在着多元化折价；而且大量的实证研究也具体度量了多元化折价程度。而近期对多元化经营的研究却从不同的侧面对上述结论提出了置疑。本文在总结了国外对企业多元化最新研究的基础上，认为对多元化折价的置疑本身仍存在诸多问题，因此，不能仅凭相对少量的研究结论就轻易否认多元化折价的存在。     

The Pin Factory Revisited: Product Diversification and Productivity Growth

Manufacturing plants have been producing an increasingly homogeneous product mix over recent years. Individual plants have been manufacturing fewer and less dissimilar products. The trend is ubiquitous across industries and is unlikely to be a random event. An index of product diversification is introduced into a fixed-effects model of productivity growth derived formally from a factor-minimal cost function. Specialization at the production site is found to have spurred productivity growth. Over the 1963–87 period, decreasing product heterogeneity has accounted for about 17 percent of productivity growth in U.S. manufacturing, second in importance only to technical change and equaling the contribution of scale economies.     

The Firm Size Distribution and Inter-Industry Diversification

We show that the stylized facts of the Firm Size Distribution (FSD) by age cohorts, as shown in Cabral and Mata (2003), bind within 4-digit manufacturing industries in the UK and Belgium. This paper investigates whether the time to build a portfolio of products from inter-industry diversification is a mechanism that helps explain the stylized facts of the FSD by age cohorts. We find that the degree of inter-industry diversification has a separate impact on firm size when controlling for age, amongst other factors. Using the techniques of Cabral and Mata, we find that inter-industry diversification does shift the FSD to the right, and more so in older age groups.     

Diversification and sophistication of livestock products: The case of African countries

This study assesses the level of sophistication of livestock products in Africa by evaluating technology intensity and economic complexity of each product. Using trade data from 1995 to 2012, livestock commodity exports are classified based on technology intensity. Employing a method of reflection in computing the economic complexity of export products, we find that one fifth of African livestock commodity exports are manufactured with low technology while the rest is composed of raw materials. The results also show that the ten most complex livestock commodities represent about a third of African livestock total exports while the world level is almost double this figure. Yet African countries spend a huge share of their wealth on importing complex products. The results imply that by exporting non-complex products Africa loses nearly a third of the total value of its livestock exports. To boost the value of livestock products, African countries should exploit their untapped potential while securing the domestic market to achieve import substitution. This can be done by integrating with global value chains or developing niche markets at the regional or international markets and improving productive capabilities.     

Institutional Portfolios: Diversification through Farmland Investment

This article demonstrates that farmland can enhance the overall performance of institutional portfolios which are currently dominated by stocks, bonds, and business real estate. Unlike previous articles on farmland returns, this article addresses the issue of "smoothing bias" associated with appraisal-based farmland returns. Improved measures of income returns to farmland are also used in developing the estimates of optimal portfolios. Parametric testing revealed that farmland continues to enter the optimal portfolios even for large increases in the variance or for large reductions in the annual returns to farmland.     

数字化带来关税征收混乱

随着越来越多消费电子产品实现了数字化, 各种贸易集团开始赞成改变关税征收政策你眼前的产品是一个20英寸LCD,还是一台PC显示器,抑或是一台电视？答案可能是:三者都是。这样的情况就开始给国际贸易带来问题。     

Diversification entry: Internal development versus acquisition

The economic theory of barriers to entry is integrated with the corporate strategy concept of relatedness, to develop a model of the choice between internal development and acquisition in diversification entry into new markets. The model is tested on original data collected for this study from PIMS Program participants. These original data cover the parent company characteristics, entry strategy and entry outcome for 59 entrants into 31 markets. These entry-related data are merged with existing PIMS data on the structure of the entered markets and their incumbents. Results of binary regression analysis show that the choice between the two entry modes is well explained by measures of barriers and relatedness. Higher barriers are more likely to be associated with acquisition entry. Greater relatedness is more likely to be associated with direct entry.     

Diversification strategies in network-based services: The case of mobile virtual network operators

This paper aims at discussing the entry process and competitive strategies of MVNOs in Italy and France. It illustrates the features of competition in a sector – the mobile telecom service industry – which is characterized by market saturation and demand heterogeneity. In doing so, it looks at the characteristics of the two countries in terms of competition and entry of new operators, at the motivations behind the entry of MVNOs, and at the performance of different companies. Results show that the most successful MVNOs are those characterized by the ability to find a perfect match between their core competencies (large network management, strong brand reputation) and the needs of specific segments of demand that had not been previously fulfilled. In this context, companies with ICT network management skills, whether coming from the telecom sector or from other network-based service industries such as postal operators, have been particularly successful in the market. From a policy perspective, despite the failure of some MVNOs, customers have benefited from the increased competition between MNOs and MVNOs in terms of range of service offerings and prices.     

Diversification through licensing

In this paper the author examines the appropriateness of taking a licence agreement to implement four different types of strategy for product diversification. The research is based on interviews with managers of more than 40 companies manufacturing more than 70 products under licence in Canada and the UK. The result is a guide to the effective use of licence agreements from the point of view of the buyer. The central question addressed is ‘under what conditions should a firm take up a licence agreement?’     

Buyer confusion and market prices

We employ a price setting duopoly experiment to examine whether buyer confusion increases market prices. Each seller offers a good to buyers who have homogeneous preferences. Sellers decide on the number of attributes of their good and set prices. The number of attributes bears no cost to the sellers and does not affect the value of the good to the buyers but adds complexity to buyers’ evaluation of the goods. The experimental results indicate that the buyers make more suboptimal choices and that prices are higher when the number of attributes of the goods is higher. Moreover, prices and profits are higher than those in a benchmark treatment with perfectly rational (robot) buyers.     

International Diversification and Performance: Evidence from Singapore

This study focuses on how international diversification affects a firm in terms of multiple performance measures (accounting-based, market-based, and intangible value creation). The study is unique as it uses segment data made available only recently, which enables the examination of both product and international diversification with performance. The period studied coincided with Singapore firms performance during the Asian Financial Crisis. In contrast to previous studies on Singapore, our results show that product diversification is negatively correlated to all measures of performance, while international market diversification is positively correlated. We attribute the difference to the time period which covers both upswings and downturns of the economy, unlike previous studies which considered only the former. Other control measures were incorporated; firm size is highly significant in explaining all measures of performance but not so for firm age, leverage, risk and industry. For top managers, we suggest that regardless of economic climate, the dominant diversification strategy is to take a focused approach to product diversification, but a broad approach to international diversification.Dr. Er and Dr. Kwok are assistant professors in the Department of Finance & Accounting, National University of Singapore (NUS). Mr Lin recently graduated with a B.B.A. honours (1st class) degree from NUS.     

Diversification and market performance

Review of Industrial Organization - Recent theoretical research indicates that diversification may affect industry profitability for reasons (e.g., improved efficiency and increased entry) other...     

International Diversification, Industrial Diversification and Firm Performance of Hong Kong MNCs

Although multinational corporations (MNCs) are not new to business research, Asian MNCs and their performance have yet to be widely studied. This study investigates the relationship between international diversification, industrial diversification and firm performance of MNCs from Hong Kong. In contrast to previous findings, the results show that Hong Kong MNCs are more internationally diversified, but not performed better, than domestic firms. Also, among Hong Kong MNCs, international diversification has a positive impact on profitability and sales growth, but not on the profitability. Industrial diversification also enhances profitability stability but reduces profitability significantly. Neither the hypothesized inverted U-shaped relationship between international diversification and performance nor the interaction effect from both international and industrial diversification strategies on performance can be validated. Implications are discussed with reference to the local context.     

电网投资的多元化

多数进行电力改革的国家，都将电网产权结构、运营管理方式作为改革的重要组成部分，在建立开放的电力市场过程中，实现输电通道的开放。2002年，国务院在电力体制改革方案中明确，区域电网公司、一县范围内营业区交叉的多家供电企业要改组为有限责任公司或股份有限公司。这是我国正式放开电网投资的明确信号。电网产权结构现状1.国家电力公司拥有绝大部分省网资产和跨区电网资产。包括全部跨大区电网，除广东、海南、西藏、江苏北部、内蒙西部等省区以外的省网，几乎全部县以上城市的城网和三分之二以上的县属农村电网资产。2.在广东、海南…     

长城自主向上

痴迷于逆向工程的竞争对手们,他们现在必须看清自己手中牌,走错一步,市场就会拱手相让,更何况自主向上的长城已经具备与合资企业全面竞争的实力。     

Diversification and performance: evidence from East Asian firms

We examine the impact of diversification on performance for firms operating in different institutional environments during a relatively stable period and during a major economy‐wide shock. We locate our study in six Asian countries at different levels of institutional development. Results indicate that diversification negatively impacts performance in more developed institutional environments while improving performance only in the least developed environments. Even in the least developed institutional environments, diversification offers limited benefits when an economy‐wide shock strikes. Though successful diversifiers are sometimes affiliated with business groups, diversification is associated with poorer performance for both affiliated firms and independent firms. In sum, we find that the outcomes of diversification are influenced by institutional environments, economic stability and affiliation with business groups. Copyright © 2007 John Wiley & Sons, Ltd.     

Diversification strategy and profitability

Prior work has shown an association between diversification strategy and profitability. This paper replicates that association using more recent and complete data and goes on to investigate the sources of the association. Theoretical arguments are advanced which predict the association which will remain once the effects of varying industry profitability are removed. Empirical tests verify this prediction and permit the discrimination between the effects of industry and diversification strategy on profitability.     

Corporate economic performance: Diversification strategy versus market structure

This paper incorporates both diversification strategy and market structure variables in a study of corporate economic performance. A subsample of 128 firms from Rumelt's 1974 study was updated and utilized to investigate the possibility that market structure variables might moderate or confound the diversification/performance relationship he reported. Study results indicate that performance differences could be demonstrated for some of Rumelt's categories, but, across the range of categories, a hypothesis of performance differences was rejected. As expected, categories associated with distinctly high or distinctly low economic performance were also associated with significant differences in a series of market structure variables.     

Diversification strategy and internationalization: Implications for mne performance

This study examines potential explanations for performance differences among multinational enterprises (MNEs). The research variables, diversification strategy and degree of internationalization, involve basic elements of firms' strategy: range and relatedness of products, and relative emphasis on foreign versus domestic operations. The sample included the 100 largest MNEs from the U.S. and Europe. Diversification strategy was significantly related to MNE performance, extending Rumelt's seminal research to international business. Degree of internationalization was also significantly related to MNE performance.