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In this paper we analyze the leadership relations in Spanish electricity market through a generalized oligopoly model of the Stackelberg class (Watt model). This model shows that leadership relations and market sharing are closely related and reveals that Spanish electricity market shares are a consequence of leadership relations in the market. In the Watt model, leader-follower relations are represented...
The liberalization of electricity market in Europe during the 90's and the European aim of integrating energy national markets aimed mainly increase efficiency and decreasing energy prices for consumers. Nevertheless, a wave of mergers and acquisitions reduce the number of independent players in the market and increases the concern about market concentration and his effects on market power. In our...
As the development of technology, UAV (Unmanned Aerial Vehicle) is becoming smaller and cheaper, and the demand of operating UAVs in group grows larger. In the operation of group UAVs, it is important that who the leaders should be and who the followers will be. We use multi agent technique to this problem. This study proposes the mechanism of leader selection based on approximate manipulability....
Elliptic curve cryptography (ECC) is a new techniques for public key cryptography like RSA, it offers same security level but with smaller key size. Stegauography ou the other hand, hides the existence of a message and in the best case nobody can see that both parties are communicating in secret. Developing Crypto-Steg model for security enhancement in wireless network is performed by encrypting the...
Keyword search over relational databases offers an alternative way to SQL to query and explore databases that is effective for lay users who may not be well versed in SQL or the database schema. This becomes more pertinent for databases with large and complex schemas. An answer in this context is a join tree spanning tuples containing the query's keywords. As there are potentially many answers to...
While software metrics typically help to assess the status of a project, process, product, and resource use, the suitability of metrics in Agile Software Development (ASD) process is frequently questioned due to the overheads involved. Moreover, many established metrics used in the Traditional Software Development (TSD) process, cannot be directly applied to ASD due to its iterative and incremental...
Sustainability index (SI) is always emphasizing on the life of people to satisfy their basic needs and enjoy a better quality of living without compromising future generations. Sustainability or sustainable development is based on and used to balance between the three pillars/dimensions: economy, society and environment. The SD means making decisions that recognize the longer term impacts of actions...
Rapid changes of market demands resulted in emergence the numbers of manufacturing concept; i.e. Lean Manufacturing (LM), Agile Manufacturing (AM), Responsive Manufacturing (RM), Reconfigurable (ReM), and Sustainable Manufacturing (SM). However, the models of manufacturing concept have been presented independently. In this study, the model of Fit Manufacturing (FM) concept is developed through the...
Quarterly Earnings Calls by public companies represent an example of a rich digital data stream. In this study, we intercept this data stream and use it to create a new business confidence index, the P&W Index TM. This index correlates with existing business confidence indices, both consumer and business, and correlates with US GDP percentage change. The main advantage is that it can be updated...
The Big Data Analytics minitrack has selected six papers focus on innovative applications of processing big data. These papers have moved beyond simple data mining to consider deep domain knowledge that can be used by decision makers to manage their organizations more effectively. Each of these papers solves a practical problem and demonstrates the utility of Big Data in helping organizations deliver...
This paper proposes an approach for comparing interlocked board networks over time to test for statistically significant change. In addition to contributing to the conversation about whether the Mizruchi hypothesis (that a disintegration of power is occurring within the corporate elite) holds or not, we propose novel methods to handle a longitudinal investigation of a series of social networks where...
As a common software engineering practice, software dynamic defect models are used to estimate and predict the software testing process progress, effectiveness, and the number of future defects over the next weeks. Practitioners use these dynamic defect models to ensure that the delivery of software to customers is possible from the quality point of view and to predict the release date. Old literature...
This paper estimates how the capital structure of a company influences its stock price. To raise corporate valuation, which is better for the company, using equity capital or liabilities? To answer this question, we estimated the optimal amount of liabilities in terms of tax benefit. Then we analyzed how the gap between the optimal amount and the actual amount of liabilities influences stock price.
This document will evaluate different lateral circuit protection philosophies, analyze and compare different technologies available, it's effect on system protection and operation, its impact on reliability indexes.
From a world economy point of view Switzerland has the reputation to be a very innovative country, but how is it reflected online? In this paper, we study the case of Switzerland online reputation regarding innovation including companies of its Swiss Market Index (SMI). Quantitative analysis is carried out with an advanced e-reputation monitoring tool and the results are compared with other related...
The Chinese stock market is ever changing and will play an increasingly important role in the global financial system. By analyzing topological properties of this market and temporal changes, this paper investigates network dynamics of this market by emphasizing interdependencies between stocks. This study partially selects 176 constituent stocks of CSI 300 index during the period of January 2009...
Management of investment basket and selecting assets is one of the problems of decision making in financial area. In the competitive business environment, in order to confront complex competitions in the market, financial institutes try to consider the best policy of investment basket that in turn leads to an increase in the output for the investors. The goal of this study is to develop a portfolio...
It goes without saying that technology companies are expected to innovate. However, the technical personnel need to follow the internal regulations of the company, which can conflict with the goal of innovation. Therefore, when a company changes its system of internal control, a technical organization learns new ways to work under the new system. This study aims to find the success factors for keeping...
In era of knowledge-based economy, enterprises are in the new game to win by Intellectual Capital which is the key of corporate competitiveness. Hence, measurement of Intellectual Capital becomes an urgent task for organizations. Sveiby (2001) divided the measuring methods into four categories, namely DIC (Direct Intellectual Capital Methods), MCM (Market Capitalization Methods), ROA (Return on Assets...
Some indexes of R&D productivity have existed such as sales vs. R&D expense, operating income vs. R&D expense, and they are used for relative evaluation among competitors etc. Though top managements would like to know the contribution of R&D expense to sales and profit in a company, the above indexes are not satisfied for them. It is a issue to how R&D expense contributes sales...
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