Quality of service assurance for the next generation Internet

The provisioning for multimedia applications has been of increasing interest among researchers and Internet Service Providers. Through the migration from resource-based to service-driven networks, it has become evident that the Internet model should be enhanced to provide support for a variety of differentiated services that match applications and customer requirements, and not stay limited under the flat best-effort service that is currently provided. In this paper, we describe and critically appraise the major achievements of the efforts to introduce Quality of Service (QoS) assurance and provisioning within the Internet model. We then propose a research path for the creation of a network services management architecture, through which we can move towards a QoS-enabled network environment, offering support for a variety of different services, based on traffic characteristics and user expectations

Wi-Fi Offload: Tragedy of the Commons or Land of Milk and Honey?

Fueled by its recent success in provisioning on-site wireless Internet access, Wi-Fi is currently perceived as the best positioned technology for pervasive mobile macro network offloading. However, the broad transitions of multiple collocated operators towards this new paradigm may result in fierce competition for the common unlicensed spectrum at hand. In this light, our paper game-theoretically dissects market convergence scenarios by assessing the competition between providers in terms of network performance, capacity constraints, cost reductions, and revenue prospects. We will closely compare the prospects and strategic positioning of fixed line operators offering Wi-Fi services with respect to competing mobile network operators utilizing unlicensed spectrum. Our results highlight important dependencies upon inter-operator collaboration models, and more importantly, upon the ratio between backhaul and Wi-Fi access bit-rates. Furthermore, our investigation of medium- to long-term convergence scenarios indicates that a rethinking of control measures targeting the large-scale monetization of unlicensed spectrum may be required, as otherwise the used free bands may become subject to tragedy-of-commons type of problems.Comment: Workshop on Spectrum Sharing Strategies for Wireless Broadband Services, IEEE PIMRC'13, to appear 201

The Use of Trademarks in Empirical Research: Towards an Integrated Framework

This paper represents an early attempt to develop an integrated framework linking empirical studies that make use of trademark statistics. Despite its youth, this field of scholarly activity has already accumulated a critical mass of papers that allow us to draw first general conclusions about the trademark lifecycle and its impact on organisational functioning. Based on a systematic review of 64 articles with some elements of empirical trademark analysis, five broad research areas have been identified, namely: the determinants of trademark deposits; the relationship between trademarks and innovation processes; the role of trademarks in differentiating product offerings; the strategic use of trademarks; and the impact of trademarks on firm performance. Within each category, a more detailed aggregation of articles has also been proposed. Overall, the analysis has shown that the performance-based perspective currently dominates the research landscape, with studies on trademark deposits and the trademark-innovation link to follow. At the same time, there is still little known about micro-foundations of a company's trademarking behaviour; the use of trademarks and other intellectual property rights in a complementary way and its effect on value transference; as well as the performance implications of differentiation strategy. This paper considers these and other findings to outline directions for future research

How developing countries can benefit from intellectual property: the role of collective marks in tourism

While tourism has been praised by a variety of international organizations as a means to promote the local economy in developing countries, tourism led growth has never been seen to be supported by a developing countries’ intellectual property regimes. Intellectual property rights, particularly if owned collectively, accelerate cluster creation, an organizational form particularly beneficial for tourism. The positive externalities associated with clusters can be reinforced through the assignment of collective marks. A region’s intangible assets, its social cohesion, can be fostered through the introduction of collective marks, since it is an intellectual property rights that can be owned collectively by a given community. This paper is one of the first of its kind to flesh out a more differentiated economic value proposition of collective marks, while at the same time illustrating the economic opportunities that the intellectual property system provides to developing countries’ economies.Economies of agglomeration, externalities of cluster creation, economic value proposition of collective marks

OPTIMAL TESTING STRATEGIES FOR GENETICALLY MODIFIED WHEAT

A stochastic optimization model was developed to determine optimal testing strategies, costs, and risks of a dual marketing system. The model chooses the testing strategy (application, intensity, and tolerance) that maximizes utility (minimizes disutility) of additional system costs due to testing and quality loss and allows simulation of the risk premium required to induce grain handlers to undertake a dual marketing system versus a Non-GM system. Cost elements including those related to testing, quality loss, and a risk premium were estimated for a model representing a grain export chain. Uncertainties were incorporated and include test accuracy, risk of adventitious commingling throughout, and variety declaration. Sensitivities were performed for effects of variety risks, penalty differentials, re-elevation discounts, import tolerances, variety declaration, risk aversion, GM adoption, and domestic end-user.Segregation, Testing, Tolerance, Genetically Modified, Wheat, Risk Premium, Crop Production/Industries, Research and Development/Tech Change/Emerging Technologies,