Listar por tema "Commerce"
Mostrando ítems 1-20 de 60
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Active problem-based learning for engineering higher education
(2019)The engineering sector today faces a shortage of technical personnel as a result of fast evolving technologies in innovation related sectors expected to drive economic growth. Engineering higher education is in need of ... -
Ampacity level monitoring utilizing fuzzy logic theory in deregulated power markets
(2018)The aim of this study is to develop a method based on fuzzy logic theory to accurately and effectively monitor a phase of a distribution line regarding its ampacity level; a crucial towards the health of the power system ... -
Application of zonal pricing in Greece's electricity market
(2009)Greece's electricity market is divided in two zones, North and South, due to a generation-consumption system configuration that creates a significant transmission bottleneck from North to South. Clearly, a zonal pricing ... -
Applications of Informatics in a Leonardo da Vinci project with reference to the organic farming in Greece and Europe
(2011)The market of organic products in Europe is generally expanding. The organic food production has been strictly regulated in the European Union. Particular competence requirements need to be developed not only to achieve ... -
Assess and prognosticate green house gas emissions from agricultural production of EU countries, by implementing, DEA Window analysis and artificial neural networks
(2017)One of the most important policy reforms for the European Union (EU) agriculture was the implementation of the Agenda 2000, which establishes a new framework for subsidies management, decoupled from both crop and animal ... -
Auction mechanisms for network resource allocation
(2010)In the autonomic Internet of the future, auction mechanisms arise as key methods for realizing efficient resource allocation. The major asset of auctions is their obliviousness to node utilities, which renders them capable ... -
Bubble detection in Greek Stock Market: A DS-LPPLS model approach
(2022)Upfront bubble detection is one of the holy grails in Financial Markets. In the present paper, in order to archive this goal, we consider two different methods based on the Log Periodic Power Law. We implement this early ... -
Can genetic algorithms improve trading decisions in financial markets?
(2005)Over the last years, trading systems are widely used for market assessment however parameter optimization of these systems has adopted little concern. This paper, paper provides an answer to the question Can Genetic ... -
Collusion of operators in wireless spectrum markets
(2012)The liberalization of wireless spectrum markets has been envisioned as a method for improving mobile communication services and accommodating the increasing traffic volumes of wireless users. It has been assumed that ... -
Competition and regulation in a wireless operator market: An evolutionary game perspective
(2012)We consider a communication market where a set of wireless operators compete over a large common pool of users. The latter have a reservation utility of U0 units or, equivalently, an alternative option to satisfy their ... -
Competitive conditions and sectors’ productive efficiency: A conditional non-parametric frontier analysis
(2019)The scope of this paper is to build an appropriate nonparametric frontier framework by using time-dependent conditional efficiency estimators to investigate how competition and time affect the process of technological ... -
Critical review of pricing schemes in markets with non-convex costs
(2016)We consider a market in which suppliers with asymmetric capacities and asymmetric marginal and fixed costs compete to satisfy a deterministic and inelastic demand of a commodity in a single period. The suppliers bid their ... -
Day ahead energy market and Reliability Unit Commitment: An integrated approach
(2014)The restructured electricity markets typically involve a Day-Ahead Market (DAM), which clears bid-in demand that may be generally different (lower) than the demand forecast. This difference gives rise to reliability concerns ... -
Does economic crisis force to consumption changes regarding fruits and vegetables?
(2017)This study focuses on consumers' behaviour towards Fruits and Vegetables (FVs) under economic crisis. The implementation of both factor analysis and logistic regression reveals discrete consumer groups, affected and not ... -
A double-auction mechanism for mobile data-offloading markets
(2015)The unprecedented growth of mobile data traffic challenges the performance and economic viability of today's cellular networks and calls for novel network architectures and communication solutions. Mobile data offloading ... -
Economics of mobile data offloading
(2013)Mobile data offloading is a promising approach to alleviate network congestion and enhance quality of service (QoS) in mobile cellular networks. In this paper, we investigate the economics of mobile data offloading through ... -
The eLOD ontology: Modeling economic open data
(2016)For decades, valuable economic data was out of reach for most of the people. Gradually, public budgets and tenders are becoming openly available and global initiatives promote financial transparency and data innovation. ... -
Energy commodities: A review of optimal hedging strategies
(2019)Energy is considered as a commodity nowadays and continuous access along with price stability is of vital importance for every economic agent worldwide. The aim of the current review paper is to present in detail the two ... -
Energy efficient resource allocation scheme via auction-based offloading in next-generation heterogeneous networks
(2017)The focus of this chapter is centered on the network underutilization during low traffic periods (e.g., night zone), which enables the Mobile Network Operators (MNOs) to save energy by having their traffic served by ... -
Energy modelling and the Nexus concept
(2018)The Nexus concept is the interconnection between the resources energy, water, food, land and climate. Such interconnections enable to address trade-offs and seek for synergies among them. Several policy areas (e.g. bio-based ...