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排序方式: 共有99条查询结果,搜索用时 15 毫秒
1.
Sanoussi Bilal Jean-Marie Grether Jaime de Melo 《Review of International Economics》2003,11(2):253-267
The paper uses a three-factor (capital, low- and high-skill labor), two-household (low- and high-skill individuals), two-sector trade model to analyze the determinants of voter attitudes towards immigration under direct democracy, and to identify factors that would be coherent with both the observed increase in the skilled–unskilled wage differential and the stiffening attitudes towards low-skill capital-poor immigration. If the import-competing sector is intensive in the use of low-skill labor, and capital is the middle factor, an improvement in the terms of trade or neutral technical progress in the exporting sector leads nationals to oppose immigration of capital-poor low-skill households. An increase in income inequality is also likely to stiffen attitudes towards this type of capital-poor, low-skill immigration prevalent in Europe until recently. 相似文献
2.
The paper considers a two-country model of overlapping generation heterogenous economies with intergenerational transfers carried out in the form of bequest and investment in human capital. We examine in competitive equilibrium the transitory and long-run effects of capital markets integration. First, we explore how the regime of public education affects the dynamics of the integrated economy. Second, we study the effects of capital markets integration, in equilibrium, on the intragenerational income distribution in both the host and investing country. 相似文献
3.
Grigore M. Havârneanu Jean-Marie Burkhardt Anne Silla 《International journal of injury control and safety promotion》2017,24(4):469-486
Suicides and trespassing accidents result in more than 3800 fatalities in Europe, representing 88% of all fatalities occurring within the EU railway system. This paper presents a problem-solving model, which consists of a multistep approach structuring the analysis of a suicide or trespass-related problem on the railways. First, we present the method used to design, evaluate and improve the problem-solving model. Then we describe the model in detail: it comprises six steps with several subsequent actions, and each action is approached through a checklist of prompting questions and possible answers. At the end, we discuss the added value of this model for decision makers and its usability in the selection of optimal prevention measures. 相似文献
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6.
Rudi Hessel Jolanda van den Berg Oumar Kabor Arie van Kekem Simone Verzandvoort Jean-Marie Dipama Binta Diallo 《Land use policy》2009,26(4):1162-1172
Sustainable land use planning is crucial for realizing the aim of food security and for combating land degradation in the Sahel. A participatory land use planning workshop was organised in a village in the eastern region of Burkina Faso to investigate land use problems, their causes, effects and possible solutions. Participatory research tools and GIS were combined to get insight into possible conflicts or synergies between different land use options as mapped by different ethnic groups. Pictograms were used to locate alternative land use options on the map, after which they were digitised for analysis with GIS. The workshop confirms the importance of integrating scientific and local knowledge to develop concrete options for sustainable land use that fit to local realities and aspirations. Local people are knowledgeable about the driving forces behind land degradation, they take actions to combat the effects of degradation, and they have concrete ideas about alternative land use options. The use of GIS proved its added value in the participatory process of integrated land use planning. The maps that were produced also facilitate discussions between community members, researchers and government representatives at the regional level, both regarding current land use problems and regarding alternative options as perceived by the local population. 相似文献
7.
David Bardey Helmuth Cremer Jean-Marie Lozachmeur 《Review of Industrial Organization》2014,44(4):327-345
We study competition in two-sided markets with a common network externality rather those than with the standard inter-group effects. This type of externality occurs when both groups benefit, possibly with different intensities, from an increase in the size of one group and from a decrease in the size of the other. We explain why common externality is relevant for the health and education sectors. We focus on symmetric equilibrium and show that when the externality itself satisfies a homogeneity condition then platforms’ profits and price structures have some specific properties. Our results reveal how the rents coming from network externalities are shifted by platforms from one side to the other, according to the homogeneity degree. Prices are affected but in such a way that platforms only transfer rents from consumers to providers. In the specific but realistic case where the common network externality is homogeneous of degree zero, platforms’ profits do not depend on the intensity of the (common) network externality. This result differs from those of the two-sided models, which deal with standard positive inter-group network externality. 相似文献
8.
This article presents a methodology for segmenting industrial markets on the basis of functional involvement in phases of the purchasing decision process. A decision matrix is developed as a structured measurement instrument to collect information about the composition of decision making units within target firms. The implications of this segmentation approach for industrial marketing strategy formulation are discussed. 相似文献
9.
Jean-Marie Lozachmeur 《International Tax and Public Finance》2006,13(6):717-732
This paper studies the design of disability insurance scheme when agents differ in their privately known productivity. We
extend the Diamond and Mirrlees (1978) two period model to allow for agents differing ex-ante in their productivity and characterize
the optimal nonlinear tax transfer that maximizes a utilitarian welfare function when per-period earnings and age are observable
while individuals’ productivity and health status are not observable. We show that the induced tax/benefit scheme should exhibit
a marginal income tax that decreases with age for some agents. A marginal subsidy on the young high productive income may
be desirable. While the disability scheme always involves the old low productive agents to be indifferent between working
and claiming disability benefits, this result is not always true for the old high productive agents.
JEL Classification H55 · H23 · E62 相似文献
10.
JeanMarie Dufour 《The Canadian journal of economics》2003,36(4):1034-1042
Abstract. We discuss statistical inference problems associated with identification and testability in econometrics. We consider inference in non-parametric models and weakly identified structural models (weak instruments). We point out that many ill‐defined statistical problems, such as non‐testable hypotheses, occur in these areas and are typically associated with asymptotic approximations. In non‐parametric models, such problems include testing moments and inference under heteroscedasticity or serial dependence of unknown form. For weakly identified structural models, difficulties are typically associated with improper pivots, and we review recent developments aimed at proposing more reliable procedures, including alternative proposed statistics, bounds, projection, split‐sampling, conditioning, Monte Carlo tests. JEL classification: C1, C12, C14, C15, C3, C5 相似文献