199,959 research outputs found

    Recent developments and future trends of industrial agents

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    The agent technology provides a new way to design and engineer control solutions based on the decentralization of control over distributed structures, addressing the current requirements for modern control systems in industrial domains. This paper presents the current situation of the development and deployment of agent technology, discussing the initiatives and the current trends faced for a wider dissemination and industrial adoption, based on the work that is being carried out by the IEEE IES Technical Committee on Industrial Agents

    The Behavior of Non-Oil Commodity Prices

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    The need to understand the factors that influence the behavior of commodity prices has taken on a special urgency in recent years, as nonoil real commodity prices have been declining almost continuously since the early 1980s. Since their short-lived recovery in 1984, real non-oil commodity prices have fallen by about 45 percent, translating into a sharp deterioration in the terms of trade for most commodity-dependent exporters. As Chart 1 illustrates, in 1992 the price of non-oil commodities relative to that of manufactures reached its lowest level in over 90 years.1 The longterm behavior of real commodity prices would thus appear to lend some support to the well-known Pre bisch-Singer hypothesis.2 This pattern in commodity prices has important practical implications for policymakers. For example, the presence of a negative trend in commodity prices implies continuously worsening terms of trade for many commodity-dependent countries, and further that efforts to stabilize the incomes of producers for an extended period of time may not be financially sustainable.

    The spatial economy of North American trade fairs

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    The version of record [Bathelt, H., & Spigel, B. (2012). The spatial economy of North American trade fairs. The Canadian Geographer/Le Geographe Canadien, 56(1), 18-38.] is available online at: http://onlinelibrary.wiley.com/doi/10.1111/j.1541-0064.2011.00396.x/fullThrough a study of trade fairs, this article illustrates that relational approaches to economic geography are not limited to the sphere of economic and social relationships. These relationships are influenced by and, in turn, shape material realities, such as specific infrastructure and the labour market, in a reflexive manner. Trade fairs are “relational events” that bring together regional, national, and often international producers, users, suppliers, and other agents of a value chain or technology field for the purpose of exchanging knowledge about technological and market developments, building partnerships, and maintaining existing networks through learning by interaction and observation. However, these events are also situated in space and time, grounded in the contexts of particular industries, trade patterns, public and private investments, as well as the economic geographies of places. Focusing on North America, this article presents and analyzes data on the economic geography of trade fairs and their regional economic impact (number of events, exhibitors, attendees, exhibition space). It explores regional trade fair patterns and dynamic changes in major trade fair cities by emphasizing the role of history and industry context
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