Accounting for ARPU: New evidence from international panel data

Average revenue per user (ARPU) is commonly used by regulators and industry observers to compare the performance of mobile telephony markets. Under the new EU electronic communications regulatory framework, some national regulatory authorities (NRAs) have linked higher ARPU with ‘significant market power’. This paper empirically examines the determinants of ARPU in a systematic way, taking account of service quality, market environment, regulation and quantity of service. The robust results suggest that concentration may not be a reliable indicator of competition in mobile markets; there are economies of density in mobile markets; and higher GDP per capita increases ARPU.     

Political economy of international diversification: The case for partial integration

The literature on international portfolio diversification explored the benefits of international diversification and the pricing of securities in an international context largely from the perspective of an integrated world capital market. Imperfections in the international markets were acknowledged as exogenous variables added to the basically integrated market, and their effects on security prices, consequences of diversification,etc, were then measured. All studies are related, explicitly or implicitly to two extreme situations. One extreme situation is complete segmentation, the other is perfect market integration. This paper begins with a literature review to illustrate the inadequacy of either of the extreme situations described above. A case of partial integration where the barriers are an endogenous part of the model is then presented. Indirect and circumstantial evidence that the international financial markets are partially integrated by design, and not as a result of market failures, is then presented as a preliminary validation of the partial integration model.The authors are thankful for the very valuable comments of Professor Peter Kaus of UCR.     

Income diversification and entry barriers: evidence from the Tigray region of northern Ethiopia

Farm households diversify their income sources into off-farm wage employment motivated by low farm income and availability of surplus family labor, whereas they enter into off-farm self employment to earn an attractive return. Farm households have upward-sloping, although inelastic, off-farm labor supply curves. Therefore, increasing the availability of off-farm activities and improving the wage rate received by farm households can expand the economic activity of the Tigray Regional State. Due to entry barriers, relatively wealthy farm households may dominate the most lucrative rural non-farm activities such as masonry, carpentry and petty trade. Hence the underlying factors that hinder participation in non-farm activities such as credit constraints and lack of skill may have to be addressed through the provision of credit and technical training for the poor.     

The accentuated CEO career horizon problem: evidence from international acquisitions

We develop a conceptual model of the career horizon problem of CEOs approaching retirement and discuss its implications on firm risk taking, specifically in engagement in international acquisitions. Based on prospect theory and agency theory, we emphasize the legacy conservation and wealth preservation concerns of CEOs and investigate how their holdings of in‐the‐money unexercised options and firm equity accentuate or mitigate the career horizon problem. The model is tested in the context of international acquisitions with a sample of 293 U.S. firms over a five‐year period (1995–1999). We find that a longer CEO career horizon is associated with a higher likelihood of international acquisitions. We also find that CEOs nearing retirement with high levels of in‐the‐money unexercised options and equity holdings are less likely to engage in international acquisitions than CEOs with low levels of in‐the‐money options and equity holdings. The study raises important considerations about the implications of CEOs' equity and in‐the‐money option holdings on firm risk taking at various stages of their career horizon. Copyright © 2008 John Wiley & Sons, Ltd.     

The relationship between portfolio diversification and firm value: The evidence from corporate venture capital activity

Corporate venture capital (CVC) activity exposes firms to new technologies and markets. An important but as yet unexplored question is the relationship of the industry diversification profile of the portfolio of venture companies to corporate value creation. Insights from options and diversification perspectives support our hypothesis that diversification of a corporate investor's portfolio of venture companies is related to corporate wealth creation in a U‐shaped relationship. We also propose that a corporate investor's financial constraints moderate the relationship between the diversification profile of its CVC portfolio and value creation. When we tested our hypotheses using a sample of CVC investments across multiple industries, we found support for them, and these findings may inform the CVC activities of corporate investors. Copyright © 2013 John Wiley & Sons, Ltd.     

International standards and international trade: Empirical evidence from ISO 9000 diffusion

Empirical scholarship on the standards–trade relationship has been held up due to methodological challenges: measurement, varied effects, and endogeneity. Considering the trade-effects of one particular standard (ISO 9000), we surmount methodological challenges by measuring standardization via national penetration of ISO 9000, allowing standardization to manifest via multiple (quality-signaling, information/compliance-cost, and common-language) channels, and using instrumental variable, multilateral resistance and panel data techniques to overcome endogeneity. We find evidence of common-language and quality-signaling augmenting country-pair trade. Yet, ISO-rich nations benefit the most from standardization, while ISO-poor nations find ISO 9000 to represent a trade barrier due to compliance-cost effects.     

The effects of managerial ownership on international and business diversification: Balancing incentives and risks

Research has examined the effects of managerial share ownership on business diversification, typically from the incentive alignment perspective. Yet, share ownership also shifts risk to managers (the efficient managerial contracting perspective). Furthermore, the effects of managerial ownership on international diversification are unexplored. We examine how managerial ownership influences both international and business diversification in light of the trade‐off between incentive alignment and risk bearing. Based on the differing risk profiles of the two types of diversification, we argue that incentive contracts with higher levels of managerial ownership will be inefficient, i.e., counter to shareholder interests—reducing international diversification and increasing business diversification. Our findings support our arguments for international diversification. We find no significant effect for business diversification after accounting for endogeneity and serial correlation. Copyright © 2013 John Wiley & Sons, Ltd.     

The impact of CAP reform on farmers’ plans for the future: Some evidence from South West England

This paper considers farmer intentions following the implementation of the 2003 CAP reforms, identifies the extent to which these plans have been influenced by the introduction of the Single Payment Scheme (SPS) in 2005 and considers the implications in terms of likely structural change (i.e. changes in the deployment of land, labour and capital). The analysis uses data from a large sample survey of farmers in South West England and the results indicate that CAP reform is not stimulating rapid agricultural restructuring, rather it appears to be reinforcing many existing trends towards diversification and an increasing polarisation between the largest and smallest farms. CAP reform is impacting unevenly on the farm community and different farming situations are associated with different types of reaction. Market signals may become a more powerful driver of farmer behaviour, in which case the 2003 reforms will have proved successful in providing farmers the freedom to farm without coupled subsidies. On the basis of the results presented in this paper though, only a minority of farmers seem both well placed and well disposed to exploit such opportunities.     

Firm-specific learning-by-doing in semiconductor production: Some evidence from the 1986 Trade Agreement

Studies of the economic effect of learning-by-doing in production have been hampered by the difficulty in obtaining firm-specific cost of production data. After the 1986 Trade Agreement between the United States and Japan, the U.S. Commerce Department made public masked versions of the cost of production of many semiconductor products sold in the U.S. by Japanese firms. This paper presents some of these masked, quarterly, firm-specific production cost data for different densities of DRAMs and EPROMs. The data do not give much support to the hypothesis of strong firm-specific learning-by-doing in semiconductor production. The rate of learning-by-doing may also differ significantly across firms, which also casts doubt on the impact of learning-by-doing on market structure.     

The nature of partnering experience and the gains from alliances

We examine the conditions under which the prior partnering experience of firms contributes to value creation in their new alliances. We propose that prior experience with the same partners, that is, ‘partner‐specific experience,’ provides greater benefits than ‘general partnering experience’ that encompasses all prior alliances with any partner. We further explore some of the boundary conditions for the effects of partner‐specific experience. We suggest that the effect of partner‐specific experience on value creation in alliances is moderated by the extent to which the assets of the new partner differ from those of the firm's prior partners. We also propose that the firm's own technological and financial resources increase the benefits of partner‐specific experience. Finally, we predict that the value of partner‐specific experience will increase under high levels of firm‐specific uncertainty. We test these hypotheses with comprehensive longitudinal multi‐industry data on joint ventures formed among Fortune 300 firms between 1987 and 1996. Based on stock market returns to joint venture announcements, the results provide support for the contingent value of partnering experience. The implications for managing alliances and advancing organizational learning are discussed. Copyright © 2009 John Wiley & Sons, Ltd.     

Effects of intra- and inter-regional geographic diversification and product diversification on export performance: Evidence from the Chilean fresh fruit export sector

This study examines individually the effects of intra- and inter-regional geographic diversification on the export performance of firms from the Chilean fresh fruit sector. It also explores the direct effect of related product diversification on export performance and its role as a moderator in the relationship between geographic diversification and export performance. By employing panel trade data of 279 purely exporting firms over a six-years period (2010–2015), we found that both intra- and inter-regional diversification have an inverted U-shaped relationship with export performance, where moderate levels of diversification have positive effects on export performance, but higher levels may be counterproductive. Results also showed that related product diversification has a positive effect on firm export performance and a negative moderating effect on the relationship between inter-regional diversification and export performance. In the case of intra-regional diversification, we did not find any moderating effect from product diversification. By focusing on firms from the agricultural sector based in an emerging economy, this study offers practical implications for firm managers, trade organizations and private export associations, that may also be applicable to other export-based activities and emerging economies.     

The impact of ICT patents on economic growth: An international evidence

This study aims to examine the impact of inventions, measured by the number of new patents, on economic growth. Specifically, we focus on patents in the ICT sector for a global sample of 43 economies, comprising 26 advanced and 17 emerging market economies in the period 1998 to 2016. We use a two-step system GMM to control for potential endogeneity in the data. Our results are threefold. First, total patents have mutually causal effects with economic growth, but there is no evidence of an impact of total patents on manufacturing sector growth. At the same time, ICT patents have a unidirectional causal impact on both, overall economic growth, and the growth of services and manufacturing. Second, the impact of total patents on economic growth is stronger in advanced economies. At the same time, ICT patents have a positive significant impact on the growth of advanced economies and a negative significant effect on the growth of emerging economies. Third, in the long-run, ICT patents have a positive significant impact on economic growth, while total patents do not.     

The relationship between product and international diversification: the effects of short‐run constraints and endogeneity

We examine the relationship between growth along the product and international dimension in the short run. We argue that while the presence of fungible intangible resources and economies of scope may create opportunities for a firm to expand along both dimensions, the effect of short‐ run constraints may lead to a trade‐off and a negative association between the two dimensions. In addition, we suggest that rather than being independent, decisions concerning the extent of growth along the two dimensions are likely to be made simultaneously and endogenously by firms after taking into consideration the availability of various resources. We test these propositions by observing a sample of 1,299 firms over the period of 1993–1997. Our results show strong evidence of endogeneity and a negative association between growth along the two dimensions. These findings provide important support for theories of firm growth that have long held that firms are limited in the number of opportunities they can exploit in the short run by various constraints. Copyright © 2008 John Wiley & Sons, Ltd.     

The core‐peripheral structure of international knowledge flows: evidence from patent citation data

The importance of knowledge diffusion and external knowledge is generally acknowledged for their vital role to innovation. The purpose of this study is to investigate the international knowledge diffusion structure and its evolution using patent citation networks for three periods. The analyses are carried out from overall, active cluster as well as individual connection perspectives with the help of measures from social network analysis. Results show an obvious core‐peripheral structure of international knowledge diffusion. Most of the flows happen within core group. Knowledge flows between core and peripheral numbers also widely exist but not strong, while the flows among peripheral numbers are both sparse and weak. Significant improvements widely exist among Asian countries and regions according to their knowledge absorption and influence capacities, and Chinese Taiwan and South Korea are the most outstanding new stars among them with worthwhile experiences for other catch‐ups. It also suggests that BRICS and South–South knowledge linkages play an increased role in developing and emerging economy innovation systems as they gain momentum.     

Political capabilities,policy risk,and international investment strategy: evidence from the global electric power generation industry

Whereas conventional wisdom holds that multinational enterprises (MNEs) invest less in host countries that pose greater policy risk—the risk that a government will opportunistically alter policies to expropriate an investing firm's profits or assets—we argue that MNEs vary in their response to host‐country policy risk as a result of differences in organizational capabilities for assessing such risk and managing the policy‐making process. We hypothesize that firms from home countries characterized by weaker institutional constraints on policy makers or greater redistributive pressures associated with political rent seeking will be less sensitive to host‐country policy risk in their international expansion strategies. Moreover, firms from home countries characterized by sufficiently weak institutional constraints or sufficiently strong redistributive pressures will seek out riskier host countries for their international investments to leverage their political capabilities, which permit them to attain and defend attractive positions or industry structures. We find support for our hypotheses in a statistical analysis of the foreign direct investment location choices of MNEs in the electric power generation industry during the period 1990–1999, the industry's first decade of internationalization. Copyright © 2010 John Wiley & Sons, Ltd.     

Some evidence on the accuracy of forecasts in R & D projects

In recent years many formal attempts, e.g. Baker & Pound, (1964), have been made to help R & D management assess the worth of R & D projects and select those most worthy of inclusion in the R & D programme. Most of these attempts are based on financial appraisals of a project's worth and require estimates of the costs and likely revenues that will result from the adoption of a given project. It is clear, therefore, that the validity of any measure of a worth for a project is dependent upon the accuracy of the estimates of cost and revenue associated with that project. Unfortunately the limited amount of evidence so far presented suggests, in particular, that cost estimates are extremely inaccurate.
In this paper, therefore, we try to add some further evidence on forecast accuracy for a number of industrial R & D projects. We begin with a short review of the existing literature evidence and continue with an analysis of the past effectiveness of R & D work and, in particular, of forecast accuracy.     

国际油田服务公司一体化发展的经验和启示

油田服务行业的一体化服务模式是通过强化公司资源的集中统一调配和管理,以综合项目管理为导向,增强油气勘探生产活动各环节技术服务业务的紧密性,为石油公司提供“一站式”服务和综合性解决方案.油服公司运作一体化服务需要具备六个要素.全球油服领域“三巨头”(斯伦贝谢、哈里伯顿、贝克休斯)发展一体化服务能力的经验表明:先进的理念与完善的组织机构是发展一体化服务的基础;技术研发和信息系统是实施一体化服务的有效保障;收购兼并与业务重组是扩展服务领域和快速提升服务能力的重要手段;战略联盟作为新型合作模式可加速一体化服务模式的发展.与国外油服公司相比,中国油服公司的一体化服务能力略显不足.提高一体化服务能力,需要加大投入,提高技术创新能力;引进人才,培养开发复合型人才;组织保障,以战略目标考核作引导;适时兼并,跨越式扩大规模;发挥比较优势,积极参与国际竞争.     

Farm subsidies and obesity in the United States: National evidence and international comparisons

Many commentators have claimed that farm subsidies have contributed significantly to the “obesity epidemic” by making fattening foods relatively cheap and abundant. But U.S. farm policies have generally small and mixed effects on farm commodity prices, which in turn have even smaller and still mixed effects on the relative prices of more- and less-fattening foods. Other factors have had much more influence on reducing the farm prices of food commodities and the consumer prices of food such that any effects of U.S. farm policies on U.S. obesity patterns must have been negligible. Moreover, while many arguments can be made for changing U.S. farm subsidies, even entirely eliminating the current programs could not be expected to have a significant influence on obesity rates. International evidence reinforces this finding. The countries that support their farmers most strongly tend to have relatively low obesity rates. In these countries the main support for farmers comes through trade barriers and higher consumer prices, which—like U.S. policies for sugar, dairy, orange juice, and beef—discourage consumption and reduce obesity. In contrast with agricultural subsidies, agricultural R&D has had a significant effect in the past on the relative price of food commodities and food, and has the potential to influence obesity patterns in the future, but R&D policy is a very blunt instrument for pursuing public health policy objectives.