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Dynamic Context (dynamic + context)
Selected AbstractsMotor foundations of higher cognition: similarities and differences in processing regular and violated perceptual sequences of different specificityEUROPEAN JOURNAL OF NEUROSCIENCE, Issue 12 2009Andreja Bubic Abstract Processing perceptual sequences relies on the motor system, which is able to simulate the dynamics of the environment by developing internal representations of external events and using them to predict the incoming stimuli. Although it has previously been demonstrated that such models may incorporate predictions based on exact stimulus properties and single stimulus dimensions, it is not known whether they can also support abstract predictions pertaining to the level of stimulus categories. This issue was investigated within the present event-related functional magnetic resonance imaging study, which compared the processing of perceptual sequences of different specificity, namely those in which the sequential structure was based on the order of presentation of individual stimuli (token), and those in which such structure was defined by stimulus categories (type). The results obtained indicate a comparable engagement of the basic premotor,parietal network in processing both specific and categorical perceptual sequences. However, type sequences additionally elicited activations within the lateral prefrontal, occipital and posterior temporal regions that supported categorization in this task context. Introducing sequential deviants into token sequences activated parietotemporal and ventrolateral frontal cortices, whereas a less pronounced overall response, dominated by lateral prefrontal activation, was elicited by violations introduced into type sequences. Overall, the findings obtained suggest that, although forward models in perception may be able to incorporate expectations of lower specificity when compared to the motor domain, such processing is crucially dependent on additional contributions from lateral prefrontal as well as inferior occipital and temporal cortices that support categorization occurring in such a dynamic context. [source] Reaching consensus in multiagent decision makingINTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS, Issue 3 2010Antonio Maturo A group decision making procedure, when developed in a dynamic context, grows from both an evolving knowledge base and the changes in the positions of the components, or experts, of the group. Agreement and compromise go with and drive the steps of the procedure. Let us consider the case that a committee of experts is constituted to take decisions about a subject of social interest. Usually the job ends if a majority of the members of the committee have not too different opinions about the last state of the decision. We intend to clarify the meaning of the statement "have not too different opinions," to define a structure for the concept of consensus. We assume that an external chairman, with complete information about the state of all the components of group, urges or invites decision makers to reach a consensus. The judgements of the experts are represented, in this framework, by points in a metric space, and the consensus is obtained by a dynamical construction of a maximal winning coalition contained in a ball with a fixed and suitably small diameter. This also allows us to deal with the concept of consensus in terms of algorithm. © 2010 Wiley Periodicals, Inc. [source] The role of quantitative and qualitative research in industrial studies of tourismINTERNATIONAL JOURNAL OF TOURISM RESEARCH, Issue 2 2003Brian Davies Abstract Many areas of research in tourism concentrate on quantitative or qualitative studies. Some even discuss the complementarity between the two types of studies. Hardly considered are the possibilities for combining such works within an integrated framework that also considers the business environment in which tourism operates. The purpose of this paper is to return to long neglected possibilities by reinvestigating areas of methodology and epistemology concerned with the generation of a framework that embraces both quantitative and qualitative research. A hypothetical example, in terms of industrial organisation and strategic decision making, is introduced discussing the possibilities for the triangulation of methods and paradigms and the role of the business environment. The conclusion is that an improved understanding of the tourism business requires a broader research methodology than presently exists. Both types of research and the dynamic context of tourism are important and need to be combined within an integrated framework. It has been concerned with the construction of integrating frameworks that embrace an alternative logic of inference and the context of the tourism business environment. This requires refinements of existing approaches together with a broader research methodology. Only by establishing such frameworks will an improved understanding of the tourism industry be achieved. The suggested framework presented here, with particular reference to industrial organisation and strategic decision making by tourism suppliers, is not offered as a panacea. For future work, the validity and choice of framework rest squarely on how the world and ,truth' are viewed. However, within this, the contribution of triangulated quantitative and qualitative research should help understanding by studying phenomena in their natural setting and in terms of the meanings people have of them. This should lead to a ,truer analysis' of business behaviour and hence a more purposeful investigation of hotels, tour operators, travel agents and the business of tourism in general. It is in seeking to produce this ,truer analysis' that future research activities need to concentrate. Copyright © 2003 John Wiley & Sons, Ltd. [source] Neo-Classical Neo-Populism 25 Years On: Déjà Vu and Déjà Passé.JOURNAL OF AGRARIAN CHANGE, Issue 1-2 2004Towards a Critique The Griffin, Khan and Ickowitz argument in favour of redistributive land reform, as a means of eradicating rural poverty, is an updated version of a case made by Griffin 30 years ago, and is here seen as a variant of neo-classical neo-populism. The essential logic presented by GKI is considered and it is argued that the approach is defective in its lack of historical perspective and its deployment of a static approach in a dynamic context: these defects manifested in its ignoring of the processes associated with capitalist transformation. It is further argued that its logical foundation is the neo-classical construct of perfect competition, which is without historical basis; its empirical justification is a postulated inverse relationship between land productivity and size of holding, supposedly true of all places and all times, but which is swept away by the development of capitalism in agriculture; and its social specification, in failing to capture the existence of differentiated peasantries, ignores the actual class structure of the countryside. [source] Bargaining When Exchange Affects the Value of Future TradeJOURNAL OF ECONOMICS & MANAGEMENT STRATEGY, Issue 4 2003Charles J. Hadlock We examine bargaining in a dynamic context where exchange between two parties affects the potential surplus from future trade. In this setting traders negotiate current contracts anticipating the impact of their agreement on future exchanges. We show that in growing environments these dynamic considerations will often ameliorate bargaining inefficiencies associated with private information and facilitate exchange as both parties cooperate to nurture the relationship. In contrast, we find that in declining environments dynamic considerations will often exacerbate bargaining inefficiencies and hinder trade, as both parties are hesitant to let the relationship mature. These findings have implications for preferences to form long-lived relationships. [source] The Impact of Institutional Reforms on Characteristics and Survival of Foreign Subsidiaries in Emerging Economies*JOURNAL OF MANAGEMENT STUDIES, Issue 1 2005Chris Changwha Chung abstract This study goes beyond the conventional notion of the institutional environment of emerging economies and investigates their dynamic context. It examines the complex influences of policy reforms on the characteristics and survival of foreign subsidiaries in emerging economies before and after the 1997 Asian Economic Crisis. This study proposes that FDI policy reforms during times of crisis may not only have a positive effect on institutional munificence for foreign firms, but such drastic reforms may also produce a negative effect (e.g. institutional volatility and complexity) on the environment. We consider how foreign firms effectively respond to the unfavourable forces of the post-crisis environments while taking advantage of the munificence of the policy reforms. We find that foreign subsidiaries tend to take the form of wholly-owned subsidiaries (versus joint ventures), majority joint-ventures (versus minority joint-ventures), or trading operations (versus manufacturing operations) in the post-crisis institutional environment. Consistently, foreign subsidiaries with these characteristics are more likely to survive in the post-crisis environment. [source] Sustainability report in small enterprises: case studies in Italian furniture companiesBUSINESS STRATEGY AND THE ENVIRONMENT, Issue 3 2009Francesca Borga Abstract The recent evolution of the economic and social context has led enterprises to consider and assess corporate environmental and social impacts integrated with the traditionally measured economic and operating performances. ,,From this point of view, the international debate on the advantages given by the firms' adoption of socially responsible behaviour has been developed; the increasing consciousness of the social character in enterprises' activities has enlarged the interest in communication. For this reason, several different standards have been developed in order to transmit, to the stakeholders, data, information and approaches about environmental, social and sustainability topics related to the firm's activities. In this dynamic context, the features of SMEs require specific guidelines, which address the contents of an SME-oriented sustainability report. ,,In this perspective the aim is to design guidelines able to meet with these SMEs' requirements; seven case studies, on Italian furniture small enterprises, complete the study. Copyright © 2006 John Wiley & Sons, Ltd and ERP Environment. [source] | |||||||||||||