An institutional analysis of environmental management in the Korean mobile communications industry

Environmental sustainability in the mobile communications industry can affect corporations not only in the sector but also in other industries by providing solutions to cope with environmental issues. However, despite the significance of environmental sustainability in the industry, there has been a lack of academic attention. This study investigated the environmental issues in the mobile communications industry by adopting an integrated and holistic approach to corporate sustainable management. In addition, the environmental management of mobile network operators was analyzed using the framework of institutional theory. To investigate the environmental management of mobile network operators, we carried out a case study on three Korean mobile network operators including SK Telecom, KT, and LG Uplus. The results demonstrated that economic and environmental issues were mostly found in the mobile communications industry, and the mobile network operators have actively coped with these issues. Their environmental management was relatively active, and regulatory, mimetic and normative mechanisms were working simultaneously. This study provides some meaningful implications for practitioners and policymakers.     

The effect of spatial variables on the economic and environmental performance of bioenergy production chains

The aim of this paper is to understand the impacts of spatial variables on the performance of bioenergy production chains (BPCs). Even though the strong debates continue on the use of first generation biomass for bioenergy production, many countries continue to utilize it as an alternative energy source. Several studies have been carried out on biomass transformation efficiency, on environmental impacts of using crop in biofuel production, and on its negative effects on increasing food prices. However, less attention has been paid to the role played by the spatial variables on the performance measures of BPCs.In this paper, we analyse how three spatial variables, i.e. cultivation area size, land dispersion, and accessibility to cultivation areas, can affect the performance of energy-balanced BPC, which produces its own electric and thermal energy demand. The chain is represented as a network of processes, where all inputs and outputs are geographically referred and analysed in a theoretical case example. We propose an enterprise input-output (EIO) model, which can be used as an accounting tool to compute the main materials and energy flows-related costs and as a planning tool to evaluate the chain performance in different scenarios. Finally, the proposed model is applied to an actual case study, to investigate the opportunity to establish a sunflower-based BPC in Apulia region (Italy) and to assess its performance.Results show that higher land dispersion degree and less area accessibility levels reduce the economic and environmental performance of the BPCs. The construction of the energy-balanced chain reduces the negative environmental impacts caused by fossil energy use in the processes of the BPC. Managerial implications can also be obtained from actual case study about the biodiesel plant location decisions.     

Telecommunications in the developing world : Investment decision and performance monitoring

The contention that there is significant underinvestment in telecommunications services in developing nations is supported by cross country data. The accepted approach to determining whether investment should take place involves: identifying unsatisfied demand; determining the least cost solution; and assessing whether benefits will exceed costs. The author draws upon the experience of World Bank involvement in telecommunications projects in developing nations and concludes that the trend in some developing countries toward increased investment in the sector will continue, furthering the goals of increased economic efficiency and improved social equity.     

Critical factors for the expansion of broadband in developing countries: The case of Peru

Many studies have been made on the diffusion and development of broadband, however there are few published studies on the critical factors for advancing broadband services in developing countries. Thus, the purpose of this paper is to understand and identify the critical success factors for the development of broadband services in a developing country context, using the case of Peru. In this regard, this study uses data collected from interviews with Peruvian telecommunications professionals, policy makers and regional telecommunication experts, which is supplemented by official reports and statistical data to determine the critical success factors for broadband in this country. The four factors derived are; (i) expand the availability of infrastructure, (ii) define a national broadband policy that aligns the interests of stakeholders, (iii) develop effective competition in the broadband market, and (iv) stimulate the demand for broadband services. Through a MACTOR analysis the authors found that the objectives of sharing infrastructure, the further deployment of infrastructure and the development of competition in the market for broadband services are those that generate the most divergence between actors. Additionally, the MACTOR analysis determined that no disagreement existed for the objectives related to demand stimulation. Thus, four proposals are offered for the development of Peruvian broadband. The results are relevant for academics and policy makers interested broadband development in developing countries and for rural areas of developed countries.     

Wheat in the world food economy: Increasing role in developing countries

Wheat is the oldest and most important of the cereal grains in world food supply. In the last two decades the role of wheat in the world food economy has increased substantially, especially in the developing world. This article describes and analyses the role of wheat and highlights and interprets changes that have occurred in the last two decades of rapid change. The authors analyse, in turn, trends in production, consumption, trade and prices with special emphasis on the developing countries.¹ Finally, the authors speculate on how these trends are likely to be effected by future events.     

Urban agriculture,poverty, and food security: Empirical evidence from a sample of developing countries

Urban agriculture may have a role to play in addressing urban food insecurity problems, which are bound to become increasingly important with the secular trend towards the urbanization of poverty and of population in developing regions. Our understanding of the importance, nature and food security implications of urban agriculture is however plagued by a lack of good quality, reliable data. While studies based on survey data do exist for several major cities, much of the evidence is still qualitative if not anecdotal. Using a recently created dataset bringing together comparable, nationally representative household survey data for 15 developing or transition countries, this paper analyzes in a comparative international perspective the importance of urban agriculture for the urban poor and food insecure. Some clear hints do come from our analysis. On the one hand, the potential for urban agriculture to play a substantial role in urban poverty and food insecurity reduction should not be overemphasised, as its share in income and overall agricultural production is often quite limited. On the other hand, though, its role should also not be too easily dismissed, particularly in much of Africa and in all those countries in which agriculture provides a substantial share of income for the urban poor, and for those groups of households to which it constitutes an important source of livelihoods. We also find fairly consistent evidence of a positive statistical association between engagement in urban agriculture and dietary adequacy indicators.     

Efficiency in broadband service provision: A spatial analysis

With the 2008 Federal Communications Commission (FCC) order amending both the definition of broadband and its data collection practices, the problems associated with data integrity and ZIP code aggregations in the United States will soon be forgotten. However, between 1999 and 2007, FCC Form 477 data remain the only viable, nationwide database of broadband provision in the United States. While broadband data from 1999–2004 and 2005–2007 are not directly comparable due to a modification in collection procedure, there is an absence of objective empirical analysis for the latter time period. Interestingly, although the FCC made the 2005–2007 data publically available on the Internet, password protected files largely prevented analysts from accessing, manipulating and analyzing these data. The purpose of this paper is three-fold. First, the process utilized for liberating these data from their protected format and integrating them into a geographic information system (GIS) is outlined. Second, the spatial distribution of broadband provision in the United States for 2005–2007 is explored. A mathematical programming approach is also utilized for comparing the relative efficiencies of ZIP code areas in acquiring broadband service given their demand-side socio-economic and demographic determinants. Finally, implications for public policy, particularly those associated with developing local and regional benchmarks for broadband provision, competition and access, are addressed.     

企业环境成本特点及管理方法探析

本文在对企业进行环境成本管理的必要性和环境成本的特点进行分析的基础上,指出我国企业目前在环境成本管理工作中存在的主要问题,并认为作业成本法与全生命周期成本法是环境成本管理较好的方法,进而对两种方法在企业环境成本的具体运用中进行了比较。     

Migration and the overweight and underweight status of children in rural China

The rapid economic growth in China is accompanied by a large scale rural-to-urban migration, but over time more children are left behind rural areas. This paper studies how the overweight and underweight status of the rural children is associated with the out migration of others in their household. We find that migration is related to different nutritional outcomes for the left-behind children. The older children (aged 7–12) are more likely to be underweight; the younger (aged 2–6) are less likely to be overweight if left behind without the care of a grandparent. We also find evidence that the remaining adult household members spent less time preparing meals, whereas older children take up more household chores.     

Economy size and performance: An efficiency analysis in the telecommunications sector

The existing empirical evidence on the relationship between economy size and performance has been inconclusive. This paper employs stochastic frontier analysis to estimate economic measures of efficiency for the telecommunications sectors of 139 economies and examine their relationship with economy size. Simultaneously, it controls for the effects of competition in telecommunications, privatization of state-owned providers, independent regulators, and the quality of political institutions on sector performance. The findings suggest that economy size has a positive but decreasing impact on sector performance. Small economies have an incentive to grow to improve sector performance, though larger size is not a sufficient condition for efficiency. Sector policy and the quality of polity may contribute significantly to sector performance.     

Child dietary quality in rural Nepal: Effectiveness of a community-level development intervention

Nutrition-sensitive agricultural interventions have the potential to improve child dietary quality in rural households, as evidenced by a growing body of work which concurrently measures agricultural and nutrition indicators. Our objective was to investigate whether children in rural farming communities of Nepal participating in a community-level, nutrition-sensitive development intervention had improved dietary quality compared with children living in non-participating matched rural communities. Six rural communities of Nepal where livelihoods were predominantly agricultural were selected to participate in the phased implementation of a community-level development intervention by Heifer International. Households and children in each community were surveyed at baseline, and follow-up surveys were implemented every six months for twenty-four months. Detailed data on food consumption for children older than 6 months of age were collected using a 24 h recall for 17 foods and food groups; parents responded for children. A difference-in-differences model with household fixed-effects and an analysis of covariance model were used to analyze the resulting panel data. Results indicated that the impacts of the intervention varied by agro-ecological region and by season. In the Hills region, which is poorer on average and more conducive to livestock production, children who had received the intervention for two years were 2.2 times as likely to have consumed food from an additional food group, 1.27 times as likely to have achieved minimum dietary diversity and 1.38 times as likely to have consumed animal source foods as children who received the intervention for only one year. In the Terai region, which is more conducive to crop production, there was no significant change in dietary quality attributable to the intervention. These results provide evidence that particularly vulnerable families can take advantage of community-level development activities. Given that the effects of community-level development activities were disparate across communities within the same country, we conclude that tailoring development activities for particular locations is necessary for success.     

Supply chain environmental investments in dynamic industries: Comparing investment and performance differences with static industries

Research linking investments in environmental practices to firm performance has matured over the past years. However, empirical research is still ambiguous on how and whether investments in environmental practices improve a plant's performance. We believe that contingency factors, especially the industry in which plants act has a significant role in the success of environmental investments. Using empirical data collected across a wide range of industries our results indicate that plants competing in dynamic industries such as apparel do on average invest less in supply chain environmental practices compared to plants in static industries. In addition, these environmental investments do not significantly improve operational performance in dynamic industries in terms of cost, quality, delivery and flexibility. However, in static industries environmental investments do significantly improve a plant's operational performance in terms of cost, quality and flexibility.     

The impact of trust and contract on innovation performance: The moderating role of environmental uncertainty

Research into two important control mechanisms for managing the supply chain relationship - contracts and trust - is on the rise. However, our understanding of how they influence innovation in a firm remains rather unclear. Thus, the primary objective of this study is to examine the individual and interactive effects of contracts and trust on firms' innovation performance and the contingent effects of environmental uncertainty on those relationships in China. The empirical results from a survey of Chinese manufacturing firms indicate that there is a positive relationship between trust and firms' innovation performance, an inverted U-shaped relationship between the use of contracts and firms' innovation performance, and that contracts and trust are substitutes. Moreover, we find that environmental uncertainty enhances the effects of trust, but does not influence the impact of contracts on innovation performance.     

2009年世界和中国石化工业综述

2009年,在世界经济出现复苏迹象的提振下,全球石化行业逐渐走出低迷,石化产品价格连续攀升。世界乙烯生产能力达到13116万吨,比上年增长3．5％（438．8万吨）,其中中东地区净增440.3万吨,是世界乙烯产能增加最多、最快的地区。世界石化市场需求增长缓慢,需求增长主要来自亚洲等新兴经济体;全年乙烯装置平均开工率仍在低谷徘徊。经济衰退和竞争日益激烈使欧美石化厂商处境艰难,不断削减其生产能力,但与此同时,中东和亚洲的新项目相继投产。2009年中国乙烯当量消费大幅增长26．1％;合成树脂消费反弹,进口量大幅增加;合成纤维及原料供应和需扣决速反弹,合成纤维原料进口继续增长;合成橡胶市场受汽车行业爆发性增长的拉动,需求和进口大幅增加;石化产品价格大多震荡上涨,全年呈现前低后高走势,但年平均价格低于2008年的水平。随着全球经济继续回暖,全球石化市场需求将继续回升;但未来三年,全球石化产能将面临过剩危机,迫使石化产业在区域和全球层面上进行重组。     

Citation footprints on the sands of time: An analysis of idea migrations in strategic management

We elucidate the intellectual progression of the strategic management field by examining knowledge flows to and from the Strategic Management Journal (SMJ) during the period 1980–2009. We provide a detailed mapping of the evolution of the intellectual structure of the field and identify its input‐output dependency relationships with other fields. Analysis of citation data using three analytic techniques: log‐multiplicative model, pathfinder analysis, and entropy analysis allow us to discern strategic management's influence on and engagement with other disciplines. The results show that, within the intellectual universe of strategic management, SMJ has played a central role, both as a source and storer of knowledge. We notice that, over time, there has been a decline in practitioner orientation, greater communication with finance and sociology, and increasing linkages with international business and entrepreneurship. Copyright © 2015 John Wiley & Sons, Ltd.     

Improving the food environment in kindergartens and schools: An overview of policies and policy opportunities in Europe

Childhood obesity and unhealthy nutrition are high on the European policy agenda because of their association with chronic diseases and due to the related social and economic burden. In 2014, the EU Action Plan on Childhood Obesity 2014–2020 was launched with an overarching goal to halt the rise of overweight and obesity in children by the year 2020. To facilitate the implementation of the Action Plan, the Directorate-General for Health and Food Safety of the European Commission provided support to bring together 25 Member States plus Norway for a Joint Action on Nutrition and Physical Activity (JANPA). The current paper is based on the results of JANPA and presents the explored policy options to improve children's nutrition by targeting the food environment in and around kindergartens and schools. We conclude that for effective actions countries need to combine various mutually reinforcing policies in parallel, including the provision of healthy foods, lowering the availability of unhealthy foods, restricting marketing, and promoting education. Success will depend on the coherence of messages and on the engagement of a wide range of stakeholders and sectors. Evaluation should be carefully designed, using indicators of progress towards the goal of improving diet and reducing obesity in children.     

Technical,quality and environmental efficiency of the olive oil industry

This paper studies the level of technical efficiency in the olive oil industry from a multi-output perspective, and examines olive oil production in quantitative and qualitative terms. The study also covers the environmental impact of the production process. These are key issues due to the current environmental, organoleptic and food traceability requirements of the EU Common Agricultural Policy (CAP). Furthermore, product differentiation is sought after in today’s ever more demanding markets. The production of olive oil in Andalusia (Spain) is the most important agricultural food industry in the whole region and it represents 30% of world olive oil production. Three data sources have been used: a comprehensive survey to a sample of olive oil producers, their financial reports, and the opinion of a group of experts in olive oil production techniques interviewed by means of the Delphi survey. With this data and after the construction of indicators, a production frontier is elaborated by applying an extension of the Data Envelopment Analysis (DEA) technique. This will allow for the measuring of the relative technical efficiency indices and set specific efficiency indices for both the quality of the oil produced and the environmental impact of the production process. Those factors impacting on efficiency are determined by a truncated regression model with bootstrap. The results show a medium–high level of relative technical efficiency and highlight the importance of efficiency factors involving production and marketing associations.     

Nudging and corporate environmental responsibility: A natural field experiment

We devise a “nudging” natural field experiment to test the impact of a simple form of advertising on environmentally responsible products with/without the increase of the responsible product price. We find that the simple use of a small shelf poster explaining the importance of buying a green product (with/without a concurring price increase) generates significant changes in market shares for some of the product classes for both food and non-food products. Part of the effect is generated by the reduced price elasticity of consumers to the poster-plus-price-increase treatment.     

Governance and social media in African countries: An empirical investigation

This study assesses linkages between social media and governance dynamics in 49 African countries for the year 2012. The empirical evidence is based on ordinary least squares and quantile regressions. Ten bundled and unbundled governance dynamics are used, notably: (i) political governance (entailing “voice & accountability” and political stability/no violence); (ii) economic governance (involving regulation quality and government effectiveness); (iii) institutional governance (comprising the rule of law and corruption-control) and (iv) general governance (entailing political, economic and institutional governance). Social media is measured with Facebook penetration. The findings show that Facebook penetration is positively associated with governance dynamics and these positive nexuses differ in terms of significance and magnitude of significance throughout the conditional distribution of the governance dynamics.     

离子液体在萃取分离环境污染物及环境监测中的应用

介绍了离子液体在萃取分离环境污染物和环境监测等方面的应用;萃取分离环境污染物中着重介绍了离子液体在液/液萃取、固体微萃取、液相微萃取和半透膜法富集等方法中的的应用;介绍了环境监测中运用的传感器分析和色谱分析等方法。分离环境污染物主要优势是萃取率高、选择性高等。环境监测方法具有重现性好、不存在二次污染等特点。