A mixed spectrum management framework for the future wireless service based on techno-economic analysis: The Korean spectrum policy study

The evolution of radio technology and various services has increased the world's dependence on wireless communications. The demand for and value of spectrum resources therefore are also increasing. Spectrum efficiency is the most important factor in managing spectrum scarcity. However, under the current spectrum management approach, it is difficult to adopt innovative technologies that improve spectrum efficiency and flexible usage in the current dynamic wireless market. Recently, there have been several approaches to improve efficient use of spectrum resources, and each approach has its own advantages and disadvantages. Therefore, this research first discusses current issues and analyzes relative social welfare based on the different characteristics of technology and market conditions to compare various attributes of each approach. Based on the techno-economic simulation results, this paper introduces a mixed spectrum management framework for the future wireless service and support policy makers’ decision making. Furthermore, the mixed spectrum policy to spectrum management in Korea is proposed to find a more realistic and efficient spectrum management policy.     

Scale and performance in publicly funded collaborative research and development

This paper reports the results of an extensive empirical investigation on the role of project scale (reflected in consortium size and in project budget) on various performance dimensions of publicly funded collaborative research and development (R&D) projects. Recent trends in European research policy are founded on the premise that such scale economies do exist, hence the emphasis placed on the critical mass of R&D projects. We argue that large scale in collaborative R&D confers both positive and negative effects, and thus we hypothesize an inverse U‐shaped relation between scale and performance. We only find an inverse U‐shaped effect of consortium size on networking impacts and a U‐shaped effect of project budget on goal achievement. No other statistically significant relationships were found for the remaining performance dimensions (i.e. scientific outputs, technological outputs, and research capacity impacts). More generally, and consistent with recent work on the relation between quality and quantity in academic research, our analyses offer little evidence to support the idea that increasing scale generally improves collaborative R&D performance. It appears that the simple assumption ‘bigger is better’ in European Union‐financed collaborative R&D may need to be reconsidered.     

The effects of environmental focus and program timing on green marketing performance and the moderating role of resource commitment

Should firms adopt sustainable marketing policy and develop green products? Most popular press says yes, but industry remains slow to act upon such initiatives. Drawing upon recent research in the Industrial Marketing Management Sustainability Special Issue, this research investigates the impact of green initiatives on firm performance and how the related commitment of resources impacts the effectiveness of those initiatives. The goal of this paper is to explore the effectiveness of green marketing on firm performance, in terms of financial performance, market performance, and service quality. Further, resource commitment is examined as a possible boundary condition of these relationships. Using multi-source data, the findings suggest that the commitment of proper resources is critical to the success of any green initiative. This study also supports the notion that being the first firm in an industry to initiate a green program provides few tangible benefits. More importantly, even firms with an environmental focus neglect to realize superior performance unless the specific strategy is matched with consistent support from top management.     

Whether crop diversification is a desired strategy for agricultural growth in Bangladesh?

This study aimed at examining the merit of crop diversification as a strategy for agricultural growth in Bangladesh. Specifically, the existence of economies of diversification, scale economies and diversification efficiencies at the farm level were examined using a stochastic input-distance function approach. The results reveal strong evidence of diversification economies amongst most crop enterprises except the combination of modern rice and modern wheat enterprises. Ray economies of scale exist in Bangladeshi cropping system. Also, significant are efficiency gains made from diversification among cropping enterprises. The key policy implication is that crop diversification should be a desired strategy for agricultural growth in Bangladesh. Development of the rural infrastructure is also essential as this will not only improve technical efficiency but may also synergistically promote crop diversification by opening up opportunities for technology diffusion, marketing, storage and resource supplies.     

Household-level determinants of adoption of improved natural resources management practices among smallholder farmers in western Kenya

Integrated natural resources management (INRM), of which integrated soil fertility management (ISFM) is a component, offers considerable promise for increasing food production in Kenya. It nonetheless remains unclear whether ISFM/INRM techniques lend themselves easily to adoption by smallholder farmers. Using panel data collected in western Kenya in 1989 and 2002, this study finds that resource constraints limit many farmers’ adoption of ISFM/INRM techniques. The size of the farm owned by a household, the value of its livestock, off-farm income, family labor supply, and the educational attainment and gender of the household head all had a significant positive effect on the likelihood of adoption. Similar factors were found to be statistically significant in discouraging abandonment of the practices under study. There thus seem to exist reinforcing feedback between investments in soil fertility management and household wealth, as measured by asset endowments. Our findings raise important questions as to whether ISFM and related techniques are really affordable to poorer smallholder farmers.     

Facets of operational performance in an emergency room (ER)

This paper, using detailed time measurements of patients complemented by interviews with hospital management and staff, examines three facets of an emergency room’s (ER) operational performance: (1) effectiveness of the triage system in rationing patient treatment; (2) factors influencing ER’s operational performance in general and the trade-offs in flow times, inventory levels (that is the number of patients waiting in the system), and resource utilization; (3) the impacts of potential process and staffing changes to improve the ER’s performance. Specifically, the paper discusses four proposals for streamlining the patient flow: establishing designated tracks (“fast track,” “diagnostic track”), creating a “holding” area for certain type of patients, introducing a protocol that would reduce the load on physicians by allowing a registered nurse to order testing and treatment for some patients, and potentially and in the longer term, moving from non-ER specialist physicians to ER specialists. The paper’s findings are based on analyzing the paths and flow times of close to two thousand patients in the emergency room of the Medical Center of Leeuwarden (MCL), The Netherlands. Using exploratory data analysis the paper presents generalizable findings about the impacts of various factors on ER’s lead-time performance and shows how the proposals fit with well-documented process improvement theories.     

Food product composition,consumer health,and public policy: Introduction and overview of special section

As efforts to improve diets in high income countries intensify, attention has turned to how policies may influence diet composition. The case studies in this special issue contribute to our understanding of how two main types of policies have influenced food product composition and dietary outcomes: (1) policies affecting food manufacturers’ input costs and (2) information policy affecting competition. Research on the first type of policy is relatively new, but suggests that US commodity policies would not be good policy instruments to influence diets, except through the long run impacts of agricultural research. Research on the impacts of information policy continues to demonstrate that it can spur food industry competition to introduce healthier products, but may not result in healthier diets. International comparisons show where the US experience may have relevance for other high income countries.     

Consumer search and income inequality

Competition and consumer search costs can lead to price dispersion in an oligopoly. IO research has long identified the existence of search costs and estimated their distribution and is now beginning to study which consumers sit where in the distribution. This paper argues for a view of consumer protection and competition policy that considers distributional outcomes along with efficiency. We discuss the evidence on how consumer search varies over the income distribution and provide a literature review that summarizes research on (i) the search-income gradient; (ii) mechanisms for the gradient; and (iii) how search-based price discrimination can give rise to regressive price dispersion. Through our review, we collect evidence from a wide range of industries that shows that low-income consumers tend not to search. We then draw on research from IO, marketing, finance, urban, and behavioral economics for explanations as to why this pattern persists. Finally, we conclude that IO researchers have much to offer in identifying and quantifying the distributional impacts of market power, thereby contributing to current academic and policy debates on efficiency-equity trade-offs in policy design.     

Crop biotechnology and the African farmer

Recent reports, workshops and meetings on GM (Genetically Modified) crops tend to characterize GM food production as a solution to Africa’s food crisis. However, GM crops are currently grown commercially in only one country in Africa – South Africa. Biotechnology tools range from tissue culture to molecular breeding and genetic engineering. This paper focuses on GM crop improvement and analyzes the development of seven GM crops (six food staples and cotton) over the past 15 years in Africa. The case studies reveal a number of unexpected scientific, legal, economic and political barriers to the development of GM crops and long delays in developing and implementing national biosafety regulations and guidelines. We conclude that most GM crops are at least 10–15 years or longer from reaching smallholder farmers in Africa. During this time special attention should be given to strengthening conventional plant breeding programs in NARS (National Agricultural Research Systems), African universities and the CGIAR. Biotechnology approaches must be nested and integrated into plant breeding programs. Special attention should also be given to raising public awareness of biotechnology, mobilizing political support and commitment to strengthening African capacity in biotechnology, biosafety, food safety and IPR (Intellectual Property Rights) and mounting long-term training programs to train the next generation of African plant breeders and GM crop specialists.     

The impact of service worker personal resources on relationship quality in business solutions

Service workers are vital in business solution implementations due to their importance to customer outcomes. However, service workers face time and resource constraints that limit their ability to address the multiple requirements of individual customer firm members. Therefore, achieving relationship quality can be stressful. Surprisingly little research exists in this area, so it is, therefore, the focus of the present study. Drawing on the results of a survey of 220 members of customer firms, the study first explores the impacts of three types of personal resources (flexibility, reputation and empathy) on relationship quality. The results suggest all three personal resources have positive effects. The study also considers the mediating effects of task alignment (i.e. when personal resources are appropriate for specific job demands) and the moderating effects of team membership (customer delivery team versus customer management team). The results suggest task alignment dampens the effects of the three personal resources on relationship quality, which implies that specific tasks do not necessarily affect relationship quality as a whole. Team membership moderates all hypothesized effects, suggesting a more operational focus for customer delivery team members and a more strategic focus for customer management team members.     

Organizational Learning Ambidexterity,Strategic Flexibility,and New Product Development

Although organizational ambidexterity has gained momentum in recent innovation research, previous literature still offers a confusing and partial picture about how to leverage ambidexterity for new product development because of two limitations. First, previous research mainly focuses on static resource endowment and thus offers little insight about how firms should dynamically reconfigure resource portfolios to leverage organizational ambidexterity. Second, conceptual confusion on the notion of the balance dimension of organization ambidexterity still exists. This study seeks to explore how firms should dynamically reconfigure resource portfolios to leverage organizational ambidexterity for new product development and to bring greater conceptual clarity to the notion of balance. By extending the static resource assumption, which is central to the extant debate in organizational ambidexterity literature, this research unpacks ambidexterity into a relative exploratory dimension and an interactive dimension. We further investigated the moderating effect of resource flexibility and coordination flexibility on the impacts of the two dimensions on new product development performance. Based on the dynamic resource management view and organizational learning theory, we proposed six hypotheses and collected data from 213 firms through a survey to examine the hypotheses. Our results indicate that relative exploratory dimension and interactive dimension have different effects on new product development. Specifically, the relative exploratory dimension has an inverse U‐shaped effect on new product development while the interactive dimension has a positive effect. Furthermore, we find that resource flexibility and coordination flexibility have positive moderating effects on the relationships between the two dimensions of ambidexterity and new product development performance. Our study contributes to the ambidexterity research in three ways. First, from a dynamic resource management view, this study extends previous ambidexterity research from a static view to a dynamic view by exploring the moderating effects of resource flexibility and coordination flexibility. Second, we extend the understanding on ambidexterity by bringing greater conceptual clarity to the notion of balance. Third, this research provides new evidence on the effects of ambidextrous learning on new product development performance in transition economy such as China, where ambidextrous learning is crucial for firms to adapt to a dynamic environment.     

The influence of material resources on innovation projects: the role of resource elasticity

More (rather than fewer) material resources are thought to be the key driver in innovation project performance. Recent empirical evidence, however, suggests that the influence of material resource availability on innovation projects is not as simple and straightforwardly positive as it may seem. We build on the concept of an innovation project team's resource elasticity to disentangle the material resource–innovation output conundrum. This concept is analogous to the marketing concept of price elasticity and points to four types of innovation project teams based on their resource elasticity: In resource‐elastic teams, the relationship between material resources and innovation outcomes is positive (hence, they are ‘resource driven’ when able to dispose of adequate material resources or ‘resource victims’ when lacking these material resources). In contrast, and as a significant departure from previous work, resource‐inelastic teams show no or even a negative relationship between material resource adequacy and team performance (thus, the teams are ‘resourceful’ if they can perform with limited material resources or ‘resource burners’ if they show low success with adequate material resources). Because neither adequate nor inadequate material resources seem to be a reliable predictor of success, we synthesize empirical research efforts that point to each team type's key characteristics to derive novel implications for managing innovation projects.     

Knowledge management and franchise systems

Knowledge management is generally recognized as a resource for sustainable competitive advantage. Many organizations have approached knowledge management through the use of information technology. However, results are mixed, primarily because (1) information is merely one aspect of knowledge management, (2) some types of knowledge are difficult to transfer effectively and (3) the structure and culture of organizations may inhibit knowledge transfer. In this study, we examine knowledge management in a franchising context because franchisors and franchisees are independent entities linked together in a contractual (some even use the word hybrid) relationship. In addition, the ’product or service’ offered by a franchise organization is an outcome of knowledge resources and the success of a franchise system depends on how well the parties involved in a franchise system leverage their knowledge resource. Specifically, we explicate types of knowledge, discuss the differences between traditional and network franchise organizations and develop a framework for knowledge management in franchise systems.     

Cluster and performance in foreign firms: The role of resources, knowledge, and trust

Clustering, the grouping of firms in close geographic proximity to one another, can enhance the performance of affiliated firms by providing access to complementary resources. Despite that some studies have produced empirical evidence supporting the positive impact of clustering, other studies have found no such evidence. Consequently, the consideration of clustering alone to explain differences in firm performance may be insufficient. This study seeks to determine whether the enhancement of firm performance comes as a consequence of clustering at the location level, interorganizational trust at the relationship level, or resource and knowledge management (i.e., the mechanisms of system dependence) at the firm level. Examining a sample group of Taiwanese manufacturers investing in China, we find that interorganizational trust, resources, and the mechanisms of system dependence all have a positive impact on performance. Further, we find that resources interact with clustering to positively impact firm performance.     

Strengthening B2B brands by signalling environmental sustainability and managing customer relationships

Resource depletion and environmental pollution concerns are forcing manufacturers to pay greater attention to environmental sustainability. This is especially so for business-to-business (B2B) manufacturing firms who intensively use natural resources in their operations and are blamed for observable impacts on the environment. Despite investments in environmental sustainability practices by B2B manufacturers, studies provide little explanation about the extent B2B manufacturers obtain a positive brand image and superior market performance through environmental sustainability. Furthermore, research has not identified organisational practices that strengthen the path from environmental sustainability to market performance. Drawing on signalling theory, the customer relationship management (CRM) literature, attitude theory, and data collected from B2B manufacturers and their customers, we show that environmental sustainability practices provide positive benefits to B2B manufacturers' brand image, which, in turn, impacts market performance. Further, effective CRM and working with business customers with positive environmental attitudes are essential boundary conditions that strengthen the path from environmental sustainability practices to market performance.     

Attaining food security in Central Asia—emerging issues and challenges for policy research

Developing long-term strategies for improving food security, alleviating poverty and encouraging sound use of natural resources is fundamental for sustained economic growth in Central Asia. However, the process of policy and institutional reforms has been complex and slow. This paper, based on several rounds of client consultation, attempts to synthesize emerging issues and challenges that confront food and agricultural sectors in Central Asia. It argues that developing institutions that will foster a policy dialogue on long-term issues related to food, agriculture and the environment within and among the Central Asian countries is fundamental to identify development strategies for the next 10 to 15 years. This will require setting priorities for future food, agriculture, and natural resource policy research and analysis that will help in generating and sharing information on the policy challenges and solutions useful for Central Asia in its quest to reduce malnutrition, eradicate poverty and protect the natural resource base.     

Asset divestiture following horizontal acquisitions: a dynamic view

Business acquisition, resource redeployment, and asset divestiture are elements of a dynamic process in which firms change their businesses by recombining internal and external resources. Analyzing 253 horizontal acquisitions, we show that post‐acquisition resource redeployment leads to asset divestiture from the business that receives the redeployed resources, but not from the business that contributes the new resources. Consistent with scale economies rationales, we find that strategic similarity also leads to greater asset divestiture from the target firms. Many theoretical perspectives are skeptical about the positive rationale for acquisitions and many of these believe that asset divestiture is evidence of acquisition failure. Our arguments and analysis help refine the accepted wisdom. In particular, the pattern of resource redeployment and asset divestiture in our analysis suggests that acquisitions provide a means of reconfiguring the structure of resources within firms and that asset divestiture is a logical consequence of this reconfiguration process. Copyright © 2001 John Wiley & Sons, Ltd.     

Achieving food security in Central Asia — current challenges and policy research needs

This paper introduces the papers of this Special Issue on Achieving Food Security in Central Asia. Identifying the current challenges, it enlists the information gaps and policy research needs for accelerating the reform process in the food, agriculture and natural resource sectors of the Central Asian Republics. The paper concludes by calling for identifying policies and institutional arrangements that facilitate economic reforms that will lead to poverty reduction, increased food security, and sustainable use of natural resources.     

Technological Opportunity and Economies of Scale in Research Productivity: A Study on Three Global Industries

In this study, the author tests for economies of scale with the use of patent citationsand assesses the impacts of technological opportunity on research productivity inthree global industries, namely, computer, chemical, and electrical and electronic.Technological opportunity in an industry is jointly represented by knowledgespillovers, inter-firm research overlap and scope of research. In particular, the effect of knowledge spillovers is decomposed into internal, intra-industry and inter-industry spillovers. The results suggest no evidence for economies of scale, but the impacts of various aspects of technological opportunity on research productivity are significantly positive. Moreover, the data indicate that if the number of firms in each overlapping research area is small, a rise in the number of these areas enhances research productivity.     

Science,practice and the System of Rice Intensification in Indian agriculture

The System of Rice Intensification (SRI) is claimed to be a novel approach to rice cultivation that is both more productive and more sustainable than conventional methods. Such claims have been challenged or dismissed by many rice scientists, however. Despite the lack of clear and unequivocal endorsement by science, SRI seems to have spread widely and rather quickly to many rice-growing regions, including various areas of India. This paper discusses how and considers why SRI seems to have attracted the support of diverse stakeholders in Indian rice farming. As such, the SRI phenomenon should be taken seriously. Nevertheless, many scientific questions remain to be answered, concerning the biophysical mechanisms involved in SRI and their effects on plant performance and crop yields, the true spread of SRI practices among farmers and the system’s impacts on farm livelihoods, rice production and resource use. Indian enthusiasm for SRI implies a level of dissatisfaction with conventional approaches to rice intensification and a demand for new methods that can address the perceived problems and challenges of agriculture in the future.