Search results for "EXCHANGE"
showing 10 items of 2035 documents
Multi-Authored Manuscripts and Speedup in Academic Publishing
2014
It is unfair to count a n-authored paper as one paper for each coauthor, i.e., as n papers: this is “feeding the multitude”. Sharing the credit among coauthors by percentages or by simply dividing by n is fairer but somewhat harsh. So, we propose to take into account the productivity gains of parallelization by introducing a team bonus function that multiplies the allocation thereby increasing the credit allocated to each coauthor.The degree of parallelization cannot be determined exogenously discipline by discipline. So, one may propose that each team of coauthors indicates how the labor was organized to produce the paper. Unfortunately, the coauthors may systematically bias their answers …
Context Comparison for Object Fusion
2003
We propose a solution to help the integration of heterogeneous sources based on the fusion of objects according to their context. New requirements for information exchange have emerged with all the developments around Internet. Information consumers want to access and combine data from remote and heterogeneous sources in a transparent and dynamic way. To achieve this level of interoperation is yet a real challenge. We present a model to define local data as informative objects with a contextual representation associated to them. A semantic context comparison mechanism, based on a semantic distance, reconciles context of applications and constructs virtual objects in which rules make the fus…
Security Threats in ZigBee-Enabled Systems: Vulnerability Evaluation, Practical Experiments, Countermeasures, and Lessons Learned
2013
In this paper, two practical attacks against ZigBee security are proposed and the latter one is also carried out in our laboratory environment. The attack scenarios are based on utilizing several vulnerabilities found from the main security components of ZigBee technology. The first attack is based on sabotaging the ZigBee End-Device by sending a special signal that makes it wake-up constantly until the battery runs out. The second attack is based on exploiting the key exchange process in ZigBee when using the Standard Security level defined by the ZigBee specification: we also demonstrate with experimental figures that attacks against ZigBee-enabled devices become practical by using our at…
Exposure to Exchange Rate Risk and Competitiveness: An Application to South-Eastern Europe
2017
Our chapter investigates the economic exposure to currency risk of stock markets from nine countries in South-Eastern Europe using bilateral exchange rates of the domestic currencies against their main trading partners’ currencies between 1999 and 2015. The relevance and magnitude of exposures are investigated through changes in exchange rates in linear and non-linear specifications. Our results indicate that these economies show contemporaneous exposure to currency risk, but they are different in size and sign from one country to another and from one currency to another, a result that can be explained by the dissimilar economic structures in the region. There is smaller evidence for asymme…
Economical Incentives and Systems of Certification for the Production of Electrical Energy from Renewable Energy Resources
2007
In order to succeed in observing the international agreements undertaken in the Kyoto agreement protocol, today it is necessary to increase the electrical energy production from renewables energy resources (RERs). In this paper a complete description of the Italian incentive systems for the production of electrical energy from photovoltaic (PV) and other RERs is done. Moreover, some considerations about the effects of the incentive actions on the wide spread of RERs to produce electrical energy are reported; particular attention is paid in the economical analysis related to PY and wind systems.
The Stock Market Reaction to the Enron-Andersen Affair in Spain
2006
2Universidad Jaume I de Castellon This paper investigates whether listed Spanish companies audited by Andersen have suffered any negative economic impact due to the scandal surrounding Andersen’s work in Enron Corporation. To that end, we have measured the economic consequences, if any, of Andersen’s loss of reputation by examining the reaction in terms of movements in the stock prices of its client companies using an event study methodology. We have analysed abnormal returns on the stock prices of all firms listed in the Spanish Interconnected Market around two event dates: the date of Andersen’s public admission that it had destroyed significant financial documents related to Enron Corp. …
One Size Fits All?
2010
The creative class thesis put forward by Florida [(2002a) The Rise of the Creative Class and How it's transforming Work, Leisure, Community and Everyday Life (New York: Basic Books)] has in recent years been subject to vivid debate and criticism. This article applies the creative class thesis onto a Nordic context in order to examine whether Florida's theory proves fruitful in a context different from the US. Based on qualitative data, the paper analyses the role of people climate and business climate for the location of the creative class and firms in three different kinds of regions in four Nordic countries. The analyses demonstrate that the people climate tends to be of secondary importa…
The dynamics over the next few years of the Spanish mobile telecommunications market share: a mathematical modelling approach
2013
Taking into account available data from 2002 to 2009 about the market share percentages of the Spanish mobile telecommunications service providers, a dynamic diffusion model to study the evolution of the clients’ change between the different companies during the period 2010–2016 is proposed. The constructed model provides a tool for forecasting short-term trends about the customers’ preferences with respect to mobile network operators taking into account both, autonomous decisions due to direct marketing and advertising strategies, and also decisions adopted through interaction via social influence. The model can provide insights to companies for designing strategies in order to gain market…
The term structure of volatility predictability
2020
Volatility forecasting is crucial for portfolio management, risk management, and pricing of derivative securities. Still, little is known about the accuracy of volatility forecasts and the horizon of volatility predictability. This paper aims to fill these gaps in the literature. We begin this paper by introducing the notions of the spot and forward predicted volatilities and propose to describe the term structure of volatility predictability by the spot and forward forecast accuracy curves. Then we perform a comprehensive study on the term structure of volatility predictability in the stock and foreign exchange markets. Our results quantify the volatility forecast accuracy across horizons …
Linking Online Marketing Practices in Romania to Global Trends
2018
The very fast online transformations cause rapid changes in consumers’ behavior and, implicitly, the need for businesses’ adaptation to market trends and wants. We are now at that moment when a business’s survival and development essentially depend on understanding the importance of marketing and on adjustment to online marketing trends like ultimate elements in bringing its success. Thus, online marketing is a business culture, an entrepreneurial mindset in all over the world, for each type of business. This paper aims to give an overview on Romanian online advertising market by presenting data, trends, and main players. Many recent studies showed that the online is in a growing process, a…