Cellular clouds

This paper progresses an analysis of what it means to be a cellular network operator and what form the ownership and control of future cellular networks may take. Alternative modes of ownership may allow for the creation of more flexible cellular networking environments in which competition for packages of resources, that is, the licenced spectrum, the RAN and core network, ensures that the most efficient and innovative architectures, services and applications are delivered to the consumer. This paper develops the concept of the Cellular Network Cloud and Utility Cellular Networking as a means to explore the possibilities for such revolution in the way in which cellular networks are owned and operated. Changes to current industry practices which would help to meet the objectives of more flexible and competitive network ownership and control are proposed.     

Bounds for the difference between median and mean of beta and negative binomial distributions

Summary We obtain bounds for the difference between the median and mean of the beta and negative binomial distributions using elementary methods.     

State Power and Private Profit: the political economy of corruption in Southeast Asia

This article reviews the extensive political and economic literature since 1990 on corruption in Indonesia, Philippines, Thailand, Malaysia and Singapore. After considering each country's individual recent history of corruption, the article comparatively analyses the relationship of corruption in these countries with, respectively, the roles of the state, the private sector and external actors, democratisation and decentralisation, and the impact of corruption on economic growth and inequality. Our conclusion is that while economic liberalisation, democratisation and centralisation of state power influence the forms of corruption and its impact on national economic performance, they are neither necessary nor sufficient for its decline.     

An International Investigation of Problem‐Solving Performance in the Semiconductor Industry*

Using a unique survey of engineers in major semiconductor companies located in Japan, South Korea, and the United States, this article analyzes how a firm's human resource (HR) system (i.e., practices that structure work, develop skills, and reward performance) and knowledge system (i.e., information access, sharing and control) are related to the problem‐solving performance of engineers. Because of the short product market life cycles in the semiconductor industry, expeditious problem solving is an important performance goal. Therefore, this article examines the performance of engineers in terms of the time it takes them to solve problems in the context of their firms' HR and knowledge systems. It was anticipated during this study that externally oriented organizational systems, which support individual career performance and mobility (an externally oriented HR system) and the use of private knowledge sources (an externally oriented knowledge system), would be associated with superior performance in terms of problem‐solving speed. The findings support this hypothesis and demonstrate the importance of externally oriented HR systems and at the same time suggest the surprising insignificance of the orientation of the knowledge systems. These findings are applicable to engineers in the sample from the United States, whereas the findings for the Korean and Japanese engineers are inconclusive. International variation is found where the U.S. engineers work under the most externally oriented and the Japanese engineers under the least externally oriented systems, and the Korean engineers fall in between. The findings of this article suggest that when constructing a work environment for new product development, managers should take into account how the underlying components of their organizational systems contribute to an internal or external focus, and how this orientation may influence performance.