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排序方式: 共有402条查询结果,搜索用时 31 毫秒
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资本市场的科学发展之路 总被引:3,自引:0,他引:3
资本市场是社会经济的重要组成部分,也要走科学发展之路。根据科学发展观的要求,资本市场不能见物不见人,要以人为本;资本市场要以人为本,投资者关系管理值得推广。资本市场不能玩“富人游戏”,要增进社会福利;切实保证资本市场制度的公开、透明,市场行为的公平、规范,才能促进资本市场的健康发展,推进社会整体福利的增长。资本市场不是孤立的市场,是市场体系中的一部分,要与各类市场协调发展。资本市场不能单打一,要促进经济、社会与自然的和谐统一。 相似文献
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许多企业在采购时,常常将整笔业务拆分为两个合同:较大的第一合同和较小的第二合同,通过分批二级价格封闭式招标来选择不同的供应商供货。本文通过建立分批招标模型分析了供应商的投标策略和买方的采购策略,得出了当参加第一合同竞标的供应商数目和第二合同新引入的供应商数目满足一个不等式时,拆分招标的采购成本小于整体招标的采购成本,并且指出了拆分比例对拆分招标的采购成本的影响。 相似文献
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We analyze the contribution of ecosystem services to GDP and use this contribution to calculate an empirical price for ecosystem services. Net primary production is used as a proxy for ecosystem services and, along with capital and labor, is used to estimate a Cobb Douglas production function from an international panel. A positive output elasticity for net primary production probably measures both marketed and nonmarketed contributions of ecosystems services. The production function is used to calculate the marginal product of net primary production, which is the shadow price for ecosystem services. The shadow price generally is greatest for developed nations, which have larger technical scalars and use less net primary production per unit output. The rate of technical substitution indicates that the quantity of capital needed to replace a unit of net primary production tends to increase with economic development, and this rate of replacement may ultimately constrain economic growth. 相似文献
5.
张三元 《湖北经济学院学报》2006,4(6):115-119
在现实中,在范围和程度上,人的自由而全面的发展都具有相对性.作为理想和现实的统一,研究其相对性具有重要的意义.重视每一细微的发展,是通向终极目标的惟一途径. 相似文献
6.
Alister Jones Judy Moreland 《International Journal of Technology and Design Education》2004,14(2):121-140
This paper describes the frameworks and cognitive tools that have been developed to enhance practising teachers' pedagogical
content knowledge in primary school technology education. The frameworks evolved from our research that firstly examined existing
teaching practices, secondly enhanced formative interactions and thirdly enhanced summative assessment strategies. The evidence
gained over the three years demonstrated how the effective use of frameworks could be utilised to enhance teacher pedagogical
content knowledge (PCK). How we see learning is of prime importance in examining the development of teacher pedagogical content
knowledge. A sociocultural view of learning is taken where human mental processes are situated within their historical, cultural
and institutional setting. In the research project we strongly emphasised the need for teachers to build a knowledge base
for teaching technology. Critical aspects identified as enhancing PCK included: negotiated intervention, planning frameworks,
reflection on case studies, workshops and support in classrooms, appropriate resources, teacher agreement meetings, portfolios
of student work and summative profiles. The increased PCK resulted in: enhanced teacher knowledge about technology including
the nature of technology, areas of technology and specific technological knowledge, changed pedagogical approaches, enhanced
teacher student interaction, refinement of appropriate learning outcomes, critical decision making, improved teacher confidence,
and enhanced student learning. Seven characteristics or features of pedagogical content knowledge that we believe are important
for effective teaching and learning in technology are presented.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
7.
ROEL BEETSMA MASSIMO GIULIODORI JESPER HANSON FRANK DE JONG 《Journal of Money, Credit and Banking》2018,50(7):1401-1440
We provide evidence for the euro area of spillovers from foreign public debt auctions into domestic secondary‐market auction cycles. We also confirm existing evidence of such spillovers from domestic issues into the domestic secondary market. Consistent with a theory of primary dealers’ limited risk‐bearing capacity, we find that auction cycles from domestic issues are stronger during the recent crisis period, whereas cross‐border effects are stronger in the precrisis period, but this evidence is not strong. This finding likely reflects the opposing effects of reduced sovereign bond market integration during the crisis and higher yield covariances caused by more market volatility. 相似文献
8.
Zeus Guevara Edmundo Molina-Pérez Edith X. M. García Vanessa Pérez-Cirera 《Economic Systems Research》2019,31(2):178-205
The North-America Free Trade Agreement (NAFTA) has brought together the economies of Canada, Mexico, and the US into forming one of the largest trading blocs worldwide (within the top CO2 emitters). However, the current global protectionist discourse threatens the agreement. This paper analyzes the energy and energy-related CO2 emission relationships between NAFTA countries in 2014 to gain insights into the climate change implications of current integration and the possible cancelation of the agreement. The analysis is performed with a multi-regional version of the multi-factor energy input–output model. The results show that NAFTA has not built a single integrated energy system, though it has helped reduce energy-related CO2 emissions. Moreover, if NAFTA is not revoked, further integration would depend on the capacity of the Mexican energy sector to converge to the performance of its trade partners’ energy sectors. Conversely, a broken deal would induce negative environmental externalities. 相似文献
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10.
Amber Salter Nina Thomas Tuula Tyry Gary Cutter Ruth Ann Marrie 《Journal of medical economics》2017,20(5):493-502
Aims: To better understand the impact of the clinical course of multiple sclerosis (MS) and disability on employment, absenteeism, and related factors.Materials and methods: This study included respondents to the North American Research Committee on Multiple Sclerosis Registry spring 2015 update survey who were US or Canadian residents, aged 18–65 years and reported having relapsing-remitting MS (RRMS), secondary progressive MS (SPMS), or primary progressive MS (PPMS). The RRMS and SPMS participants were combined to form the relapsing-onset MS (RMS) group and compared with the PPMS group regarding employment status, absenteeism, and disability. Multivariable logistic regression was used to examine the relationship between employment-related outcomes and factors that may affect these relationships.Results: Of the 8004 survey respondents, 5887 (73.6%) were 18–65 years of age. The PPMS group (n?=?344) had a higher proportion of males and older mean age at the time of the survey and at time of diagnosis than the RMS group (n?=?4829). Female sex, age, age at diagnosis, cognitive and hand function impairment, fatigue, higher disability levels, ≥3 comorbidities, and a diagnosis of PPMS were associated with not working. After adjustment for disability, the employed PPMS sub-group reported similar levels of absenteeism to the employed RMS sub-group.Limitations: Limitations of the study include self-report of information and the possibility that participants may not fully represent the working-age MS population.Conclusions: In MS, employment status and absenteeism are negatively affected by disability, cognitive impairment, and fatigue. These findings underscore the need for therapies that prevent disability progression and other symptoms that negatively affect productivity in persons with MS to enable them to persist in the workforce. 相似文献