In the information age, lters are going to play a dominant role. Isolated lters are incapable of dealing with a large number of incoming documents. Collaborative ltering creates a symbiosis of information ltering and web based technologies. However, collaboration has associated costs. Each service ooered and provided by a lter must be appropriately compensated. Here we present two economic mode...

broad literature originating in the late 1980s documents the empirical regularity that the slope of the yield curve is a reliable predictor of future real economic activity. Today, there exists a substantial body of evidence from which various useful stylized facts have emerged. This catalogue of some of the salient findings takes the form of answers to frequently asked questions. An extensive ...

In a 2007 paper, “A global game with strategic substitutes and complements”, by Karp, L., I.H. Lee, and R. Mason, Games and Economic Behavior, 60(1), 155-175, an argument is made to show existence of Bayesian-Nash equilibrim in global games that may include both strategic substitutes and complements. This note documents a gap in the proof of that statement and presents an alternative proof for ...

among various types of cities, mining cities have special features including a high concentration of industrial activities associated with the exploration, extraction, refining, processing and export of groundwater resources, the risk of reduction and termination of non-renewable resources, high degree of environmental pollution, high production of domestic and industrial waste and social issue...

background: indicators of the level of education are the most important parameters infl uencing each country’s development. social indicators considered to be a determinant of one’s health consists of two constituents namely; (1) rate of students enrolled in elementary, guidance, secondary and higher education and (2) the rate of adult literacy. this study is aimed to evaluate the situation of ...

Internet Marketplaces are a new computational paradigm with a huge economic potential. These markets extend the concept of electronic commerce by putting an emphasis on simple access and combination of data and computational services. Among the diierent market services ooered, service repositories are vital for the success of the Internet Marketplace. Service repositories not only act as interf...

The onset of formulating strategies and policies regarding the bioeconomy can be, at least partly, attributed to the publication of the policy agenda on the bioeconomy by the Organisation for Economic Cooperation and Development in 2009. The aim of this study is to analyze selected national strategies and policies regarding the development of a bioeconomy and to clarify similarities and differe...

background: the aim of present study was to determine the quality of nursing documents in medical-surgical wards and factors affected this quality. methods: in this descriptive study the quality of nurses' documents in medical-surgical wards of teaching hospitals related to tabriz university of medical sciences was assessed. for data gathering, four checklists assessed four parts of nursing doc...

To provide an overview of the economic impact of poor mental health in the workplace and assess the extent to which economic evaluation has been used to further the case for investment in workplace based mental health programmes. Rapid scoping review of published and grey literature. The socio-economic costs of poor mental health in the workplace are substantial but conservative, as few studies...