全文获取类型
收费全文 | 156篇 |
免费 | 4篇 |
专业分类
财政金融 | 5篇 |
工业经济 | 3篇 |
计划管理 | 35篇 |
经济学 | 71篇 |
综合类 | 10篇 |
运输经济 | 1篇 |
旅游经济 | 2篇 |
贸易经济 | 21篇 |
农业经济 | 2篇 |
经济概况 | 10篇 |
出版年
2023年 | 1篇 |
2022年 | 4篇 |
2021年 | 2篇 |
2020年 | 4篇 |
2019年 | 1篇 |
2018年 | 3篇 |
2017年 | 7篇 |
2016年 | 3篇 |
2015年 | 3篇 |
2014年 | 6篇 |
2013年 | 6篇 |
2012年 | 16篇 |
2011年 | 30篇 |
2010年 | 7篇 |
2009年 | 16篇 |
2008年 | 18篇 |
2007年 | 10篇 |
2006年 | 6篇 |
2005年 | 4篇 |
2004年 | 2篇 |
2003年 | 2篇 |
2001年 | 2篇 |
1995年 | 1篇 |
1992年 | 2篇 |
1989年 | 1篇 |
1985年 | 1篇 |
1984年 | 2篇 |
排序方式: 共有160条查询结果,搜索用时 15 毫秒
31.
研究目标:中国区域间贸易成本测度及其分解。研究方法:选取1997年、2002年和2007年中国区域间投入产出表测量和分解。研究发现:中国总体区域间贸易成本呈现先上升后下降的态势;中国的国内贸易成本始终小于国际贸易成本,东北区域和贸易程度相对较低的建筑业、服务业、农业等行业的贸易成本较高;区域间贸易成本分解发现距离较远的区域间贸易成本较高,“邻近偏好”明显;经济增长极则表现出显著的“腹地偏好”,即与其经济腹地间贸易成本较低;而东部沿海的“后来居上”主要来源于沿海之间存在的“区域分割”。研究创新:中国区域间贸易成本的演进及其双边特征。研究价值:为促进区域合作、产业升级提供参考。 相似文献
32.
Construction prices are lower in developing countries in ICP 2005, which has raised these countries' capital/output ratio in Penn World Tables 7 and 8 and affected growth analyses. We estimate the Colombia/U.S. price ratio for office and apartment buildings in 2005 as a test of the validity of the ICP 2005 methodology for estimating these prices. Our estimate of the Colombia/U.S. price ratio is almost twice the ICP 2005 estimate. We confirm the validity of our results by estimating the cost of constructing office and apartment buildings using 2005 prices for construction materials, equipment, and labor in both countries. 相似文献
33.
J. Asger Olsen 《Economic Modelling》1992,9(4)
This article demonstrates that a dual pair of input-output price and quantity models, taken together, constitutes a composite network flow model. The network flow model has become a dominant analytical tool within the fields of operations analysis and electrical engineering, and the aim of the article is to enable input-output users within non-standard applications to take advantage of the large body of literature within these disciplines. Through a simple example it is shown that the solution of a dual pair of input-output models is a special case of the general problem of finding a minimum cost circulation in a transportation network. Second, it is shown that the common method of determining quantities and prices in input-output models is identical to the classical node method for determination of currents and voltages in an electrical network. The theory of transportation networks offers well developed methods for analysis of capacity constraints on the network flows, while the theory of electrical networks supplies methods for analysis of models with price sensitivities and for dynamic analysis. In addition, the elegant symmetry of currents and voltages in electrical networks contributes significantly to a better understanding of the logical relationship between price and quantity models. 相似文献
34.
This article reports on the economic implications to the USA and Western European economies after imposing protectionist trade policies on selected groups of imports till 2000. The effects of this policy are also presented for Japan and the non-oil-producing developing countries. Before discussing the results of the computations and the import restricting assumptions, a summary of the methodological framework, the World Input-Output Model, used in the computation is presented. 相似文献
35.
基于中美贸易HS6位码细分产品贸易数据以及美国对华出口产品关税加征清单,本文测算了中美贸易摩擦对中国对美HS6位码细分出口产品实际关税加征幅度及其产业影响.文章结果显示,2018年、2019年中国输美产品承担的加税总金额为540.63亿美元,税率平均增加了5.22%,其中,计算机、电子元器件、家具、汽车零部件及配件等产... 相似文献
36.
LIU Cheng ZHANG Jian-bin BAO Xin-zhong 《中国会计电算化》2009,(15):112-114
There are some shortages to ascertain attribute weight based on rough set in current studies. In this paper, attribute importance represented by rough set is studied deeply. Aiming at the existing problems, algebra presentation of rough sets is proved to be more comprehensive than its information presentation, then a new method of ascertaining attribute weigh is put forward based on rough set conditional entropy. Finally, it is shown that the new method is more reasonable than the old one by an example. 相似文献
37.
随着公路行业的发展,限额设计在公路建设中的运用越来越广泛,因此对其研究意义重大。结合公路工程实例,从业主需求出发,提出采用质量功能展开(QFD)方法,把业主对产品的质量需求转换成设计师所熟悉的质量特性,从而明确各个质量特性的相对权重。为限额设计总值的确定提供参考。 相似文献
38.
Tobias Kronenberg 《Ecological Economics》2009,68(10):2637-2645
This paper estimates the impact of demographic change on energy use and greenhouse gas emissions in Germany. Since old people display different consumption patterns than young people, an increase in the proportion of old people affects overall consumption patterns. Micro data from a household survey are used to identify age-specific consumption patterns and to project the impact of demographic change on the structure of total consumption expenditure up to the year 2030. The resulting final demand vectors are entered into an environmental input-output model, which allows the calculation of sectoral production, energy use and greenhouse gas emissions. The model results suggest that until 2030, demographic change raises the share of methane in total greenhouse gas emissions and does not contribute to reducing energy use and greenhouse gas emissions in Germany. The model is also used to explore the effects of redistributing income between age groups and a policy-induced switch from motor vehicle use to public transport. 相似文献
39.
The carbon footprint of UK households 1990-2004: A socio-economically disaggregated, quasi-multi-regional input-output model 总被引:9,自引:0,他引:9
This paper presents a socio-economically disaggregated framework for attributing CO2 emissions to people's high level functional needs. Based around a quasi-multi-regional input-output (QMRIO) model, the study, in theory, takes into account all CO2 emissions that arise from energy used in production of goods and services to satisfy UK household demand, whether the emissions occur in the UK or abroad. Results show that CO2 emissions attributable to households were 15% above 1990 levels in 2004, and that although absolute decoupling occurred between household expenditure and CO2 during the UK's switch from coal to gas in the early 1990s, since then only slight relative decoupling is evident. The proportion of CO2 that arises outside UK borders in support of UK consumption is rising, and reducing these emissions is particularly problematic in a global trading system. Investigation into the carbon footprint of different segments of the UK population shows wide variation: the segment with the highest carbon footprint emits 64% more CO2 than the segment with the lowest. Results show that recreation and leisure are responsible for over one quarter of CO2 emissions in a typical UK household in 2004. We conclude that expanding lifestyle aspirations are significant factors in driving household CO2 emissions, but the study also emphasizes that attention must be paid to the infrastructures and institutions that result in considerable amounts of CO2 being locked up in basic household activities through which people meet their everyday needs for subsistence, protection, and communication with family and friends. The findings highlight the sheer scale of the challenge facing UK policy-makers, and suggest that policies should be targeted towards segments of society responsible for the highest carbon footprints. 相似文献
40.
Trading spaces: Calculating embodied Ecological Footprints in international trade using a Product Land Use Matrix (PLUM) 总被引:4,自引:0,他引:4
Daniel D. Moran Mathis C. Wackernagel Benjamin W. Heumann Steven H. Goldfinger 《Ecological Economics》2009,68(7):1938-1951
Nations import and export biophysical resources. With many ecosystems worldwide under mounting stress, countries may be increasingly interested in knowing the extent and origin of their ecological imports and dependencies. In this paper the Ecological Footprint is used as a tool to measure the biophysical (as opposed to financial) value of international trade flows. This paper attempts to answer the following question: How large of an Ecological Footprint does a given country exert inside the borders of each of its trading partners? Records in the UN COMTRADE bilateral trade database are multiplied by a matrix of per-product Footprint yield coefficients to translate from values in dollars and tonnes to units of hectares. The results show that the largest interregional flows are from Latin to North America, and from North America to Asia-Pacific. Grouping countries by GDP, high and middle income countries appear in Footprint terms to trade predominantly with other high and middle income countries and much less with low income countries. 相似文献