56,853 research outputs found
Dynamic and Transparent Analysis of Commodity Production Systems
We propose a framework that provides a programming interface to perform
complex dynamic system-level analyses of deployed production systems. By
leveraging hardware support for virtualization available nowadays on all
commodity machines, our framework is completely transparent to the system under
analysis and it guarantees isolation of the analysis tools running on its top.
Thus, the internals of the kernel of the running system needs not to be
modified and the whole platform runs unaware of the framework. Moreover, errors
in the analysis tools do not affect the running system and the framework. This
is accomplished by installing a minimalistic virtual machine monitor and
migrating the system, as it runs, into a virtual machine. In order to
demonstrate the potentials of our framework we developed an interactive kernel
debugger, nicknamed HyperDbg. HyperDbg can be used to debug any critical kernel
component, and even to single step the execution of exception and interrupt
handlers.Comment: 10 pages, To appear in the 25th IEEE/ACM International Conference on
Automated Software Engineering, Antwerp, Belgium, 20-24 September 201
The Competitive Firm Under Price Uncertainty: The Role of Information and Hedging
We study the impact of transparency in a commodity market on the decision problem of a competitive firm under price uncertainty and hedging opportunities. Market transparency is modeled by means of the informational content of publicly observable signals which are correlated with the random price. We find that the impact of more transparency on labor employment and production depends on the firm's technology. Inparticular, more transparency may result in lower average output even though on average more labor has been used in the production process. We also analyze the link between market transparency and the welfare of the firm. --Transparency,information system,price uncertainty,hedging,competitive firm
A Strategic Approach to Agricultural Research Program Planning in Sub-Saharan Africa
Recent studies have shown that agricultural research can have high payoffs in Africa, but impact depends on how well technology fits with evolving needs and capacity in the agricultural sector and the rest of the economy. Structural adjustment policies (e.g., market liberalization, currency devaluation) and political change are transforming user demands for new technology and the economic environment in which technology must perform. The challenge is how to design agricultural research as a strategic input to promote broad-based economic growth, structural transformation, and food security in the increasingly market-driven, but fragile, economies of Africa.Food Security, Food Policy, Agricultural Research, Research and Development/Tech Change/Emerging Technologies, Downloads May 2008-July 2009: 44, Q18,
New Product Development and Product Supply Within a Network Setting: The Case of the Chilled Ready-Meal Industry in the UK
This paper analyses inter-organizational networks that link together firms operating in the food processing and distribution industry in the UK. In doing so, the paper draws on insights recently developed by Mark Casson that treat inter-firm networks as an institutional response to the changing costs and opportunities of information management. Detailed analysis of product innovation and supply chain management issues within the industry, exemplified by the growth of chilled ready-meals, leads to the identification of two distinct but complementary inter-firm networks: a network of control and a network of innovation. In each case, the study finds that the critical information is derived from the retailersâ interface with consumers and thus that these information-based networks are effectively controlled by the leading supermarket chains. The studyâs conclusions are considered in relation to the recent findings of the Competition Commission following its investigation into grocery retailing in the UK
The risks of multiple breadbasket failures in the 21st century: a science research agenda
Thomson ReutersThis report stems from an international, interdisciplinary workshop organized by Knowledge Systems for Sustainability and hosted by the Frederick S. Pardee Center for the Study of the Longer-Range Future, with support from Thomson Reuters, in November 2014.Written by an interdisciplinary team of leading researchers, this report describes a science research agenda toward improved probabilistic modeling and prediction of multiple breadbasket failures and the potential consequences for global food systems. The authors highlight gaps in the existing empirical foundation and analytical capabilities and offer general approaches to address these gaps. They also suggest the need to fuse diverse data sources, recent observations, and new suites of dynamic models capable of connecting agricultural outcomes to elements of the global food system. The goal of these efforts is to provide better information concerning potential systemic risks to breadbaskets in various regions of the world to inform policies and decisions that have the potential for global impacts
Empowering Smallholder Farmers in Markets: Changing agricultural marketing systems and innovative responses by producer organizations
Though some producer organizations have enabled developing country farmers to exploit new opportunities and/or cope with emerging challenges through developing and/or taking advantage of innovative mechanisms and institutions, there are many farmers who lack sustainable access to inputs and services as well as to remunerative output markets. This paper is intended to generate a better understanding of the conditions which make producer organizations capable vehicles by which farmers, especially small-scale farmers in developing countries, can reach markets in a dynamic and demanding trading environment, and respond to the needs of their clients and members. It aims at identifying lessons on the forms of organizations as well as the innovative mechanisms and institutions that producer organizations can adopt and/or help promote in response to challenges in the changing agricultural marketing systems, in particular, to strengthen the bargaining position of farmers.agricultural marketing systems; producer organizations; innovative rural finance
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