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41.
劳动力自由迁移为何如此重要?——基于代际收入流动的视角 总被引:14,自引:0,他引:14
未考虑人口迁移影响的代际收入弹性估计存在偏误。本文将人口迁移与区域特性纳入代际收入弹性估计方程,并运用迁移概率作为局部工具变量进行估计,发现迁移者的代际收入弹性不到未迁移者的一半。而当前我国代际收入流动的主要问题在于部分人群面临"代际低收入传承陷阱",他们可以通过迁移从而增加就业机会等方式摆脱这一陷阱,这至少可以使一代人免受代际低收入传承的困扰。进一步分析迁移对代际收入传递路径的影响,结果表明教育在可识别的代际收入传递路径中贡献最大,而迁移强化了这一影响。鉴于人口迁移对代际收入流动的重要影响,政府部门有必要进一步采取措施降低劳动力自由迁移的障碍,并合理分配教育资源,以增进社会公平程度。 相似文献
42.
健康风险冲击对农户收入的影响 总被引:35,自引:1,他引:35
本文基于中国8个省份、1354个农户、跨度15年的微观面板数据,测算了大病冲击对于农户长期收入的影响以及健康风险冲击持续的时间。我们发现:(1)大病冲击在随后的12年里对于农户人均纯收入都有显著的负面影响;(2)大病冲击对于农户的短期与中期影响使得患病户人均纯收入平均降低5%—6%;(3)健康风险冲击的长期影响可持续大约15年,并且冲击对于中低收入农户的影响更为严重。 相似文献
43.
区域一体化有利于减排吗? 总被引:1,自引:0,他引:1
将环境污染视作非期望产出,在一个拓展的增长收敛框架下讨论了区域一体化的环境效应及其理论机制。基于2003-2014年长三角城市群和珠三角城市群的数据,构建了一个测度区域一体化的新方法,运用工具变量法和双重差分法估计了跨省城市一体化和省内城市一体化对污染排放强度收敛的影响。实证结果显示:区域一体化显著促进了城市间污染排放强度的收敛并有利于减排,且近年来这种减排效应愈明显。污染排放强度呈现出条件收敛特征,经济增长收敛是污染排放收敛的重要原因。中国应利用好区域一体化促进地区协调发展和减排的双重政策红利,进一步促进区域一体化和同城化,大力发展城市群经济,构建城市间共生互利的发展格局,实现共同减排。 相似文献
44.
MICHAEL S. H. SHIH 《Abacus》1996,32(2):178-195
Prior empirical research on transfer pricing only reported what firms do but seldom explained why. This study moves the research forward by introducing hypothesis testing.
Atkinson (1987) shows that pricing transfers at variable cost when capacity is in excess. as prescribed by economic theory. would induce the buying unit to overstate expected demand at the capacity planning stage and cause a waste of resources. To test whether the strategic issue affects transfer pricing decisions, the study compares pricing methods for long- term transfer situations. which were provided for at the capacity planning stage, and ad hoc transfers.
As well. while the two-step method of charging full cost -charging variable cost for each unit transferred and separately charging a flat fee each period for capacity on reserve -has many good control qualities, it remained just an academic curiosity: there was no evidence of its wide use among firms. This study finds that the two-step method is as widely in use as the one-step method -charging variable cost plus unit fixed costs for each unit transferred. 相似文献
Atkinson (1987) shows that pricing transfers at variable cost when capacity is in excess. as prescribed by economic theory. would induce the buying unit to overstate expected demand at the capacity planning stage and cause a waste of resources. To test whether the strategic issue affects transfer pricing decisions, the study compares pricing methods for long- term transfer situations. which were provided for at the capacity planning stage, and ad hoc transfers.
As well. while the two-step method of charging full cost -charging variable cost for each unit transferred and separately charging a flat fee each period for capacity on reserve -has many good control qualities, it remained just an academic curiosity: there was no evidence of its wide use among firms. This study finds that the two-step method is as widely in use as the one-step method -charging variable cost plus unit fixed costs for each unit transferred. 相似文献
45.
Karin Perhans Dan GlödeJessica Gilbertsson Anette PerssonLena Gustafsson 《Ecological Economics》2011,70(4):771-777
Retaining forest patches at final harvest is a key conservation measure in boreal forests, but guidelines for how to increase its cost-effectiveness are lacking. In a study in boreal Sweden, we compared the cost-effectiveness of three different approaches a forest owner may use to select patches: selection based on the conservation value of patches alone, economic cost alone or both of them combined. We also compared the cost-effectiveness of six different common types of patches. Conservation value was measured as species richness of bryophytes and lichens and as structural characteristics of patches. Compared to the selection approach in which both conservation value and cost were used, cost-effectiveness was 5-14% lower when only conservation value was used, depending on how conservation value was measured. On the contrary, using only the economic cost decreased the cost-effectiveness by only 1-2%. Among the patch types, swamp forest areas and deciduous tree groups were cost-effective types to retain. However, the patch types were complementary in their species composition and all hosted unique species. We argue that, ideally, assessments of both conservation values and economic costs of retaining patches should be made prior to harvest to enable planners to make well-informed and cost-effective decisions. 相似文献
46.
47.
张荷观 《数量经济技术经济研究》2013,30(10):151-160
存在遗漏变量时回归系数的估计是计量经济学的一个重要内容。本文讨论单方程计量经济模型中随机解释变量的内生性,指出了目前的计量经济理论所存在的问题,提出了普通最小二乘估计一致性判别的新方法,并证明了存在遗漏变量情况下的普通最小二乘估计仍是一致估计。 相似文献
48.
49.
近年来随着自控技术的不断发展和硬件成本的持续下降,计算机自控在暖通空调领域有了更多应用。妥善地将自控技术运用于暖通空调系统的控制管理中,可以有效地改善系统运行品质,节省运行能耗,提高管理水平,并减少运行管理劳动强度,取得良好的经济效益和社会效益。 相似文献
50.
在我国,地方官员间的晋升竞争和行政权力所带来的地下经济收益,都会导致地区性行政垄断的出现。地区性行政垄断变量因而会受到GDP、地方财税水平等政绩指标和企业经济指标的影响,并在OLS回归估计中表现出内生性问题。文章构建了一个省级面板数据计量模型,以工具变量法对地区性行政垄断的区域经济绩效及其内生性问题进行实证检验。结果发现:地区性行政垄断损害了4个方面的区域经济绩效——生产效率、资本配置效率、技术创新能力以及国际竞争力。由于地区性行政垄断这种地方官员行为在一定程度上内生于经济系统,以往常用的OLS估计可能会低估地区性行政垄断的危害性。 相似文献