924 resultados para spatial data analysis
Resumo:
The aim of this paper is to propose a mathematical model to determine invariant sets, set covering, orbits and, in particular, attractors in the set of tourism variables. Analysis was carried out based on a pre-designed algorithm and applying our interpretation of chaos theory developed in the context of General Systems Theory. This article sets out the causal relationships associated with tourist flows in order to enable the formulation of appropriate strategies. Our results can be applied to numerous cases. For example, in the analysis of tourist flows, these findings can be used to determine whether the behaviour of certain groups affects that of other groups and to analyse tourist behaviour in terms of the most relevant variables. Unlike statistical analyses that merely provide information on current data, our method uses orbit analysis to forecast, if attractors are found, the behaviour of tourist variables in the immediate future.
Resumo:
This paper deals with the determinants of labour out-migration from agriculture across 149 EU regions over the 1990–2008 period. The central aim is to shed light on the role played by payments from the common agricultural policy (CAP) on this important adjustment process. Using static and dynamic panel data estimators, we show that standard neoclassical drivers, like relative income and the relative labour share, represent significant determinants of the intersectoral migration of agricultural labour. Overall, CAP payments contributed significantly to job creation in agriculture, although the magnitude of the economic effect was rather moderate. We also find that pillar I subsidies exerted an effect approximately two times greater than that of pillar II payments.
Resumo:
Mode of access: Internet.
Resumo:
This is a photocopy reproduction.
Resumo:
National Highway Traffic Safety Administration, Office of Vehicle Safety Research, Washington, D.C.
Resumo:
National Highway Traffic Safety Administration, Washington, D.C.
Resumo:
Mode of access: Internet.
Resumo:
"HRDI-13/11-05(1M)E"--P. [4] of cover.
Resumo:
National Highway Traffic Safety Administration, Office of Driver and Pedestrian Research, Washington, D.C.
Resumo:
Federal Highway Administration, Washington, D.C.
Resumo:
Federal Highway Administration, Washington, D.C.
Resumo:
Mode of access: Internet.
Resumo:
"HRDI-13/11-06(500)E"--P. [4] of cover.
Resumo:
Mode of access: Internet.
Resumo:
"In any comprehensive research project, there are essentially five steps. First, one starts with a literature review with regard to a particular research question. Second, one seeks to develop a theory. Third, the research question is finalized, frequently in the form of a hypothesis to be tested. Fourth, data are collected. Fifth, the subject matter of this paper, the data are analyzed in order to come to a resolution of the research question. There are two general approaches to analyzing research data. If the data were gathered concerning a 'research question,' a description of the data may be sufficient. However, if the data were gathered to accept or reject a formal hypothesis, statistical analysis is usually in order. This paper briefly surveys the principal data analysis methodologies that are available."