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1.
张燕 《内蒙古财经学院学报(综合版)》2006,4(1)
面对浩如烟海的网络信息资源丰富又无序、新颖又形象、急需开发利用。本文探讨了开发利用网上信息资源的必要性,介绍了如何开发利用网上信息资源,为用户充当网络信息导航员,发掘网上信息,丰富现有信息源等几种方法。 相似文献
2.
蔡元萍 《哈尔滨市经济管理干部学院学报》2003,(3)
网上理财服务以整合实现企业电子商务为目标提供互联网环境下财务管理模式、财务工作方式及其各项功能的财务管理软件系统、网络财务软件的各项功能都对企业财务会计产生深远影响。 相似文献
3.
This paper uses a two-country, flexible-price model with overlapping generations of infinitely lived households to study the role of net foreign asset dynamics in the propagation of productivity shocks. Absence of Ricardian equivalence ensures existence of a unique steady-state level of net foreign assets, to which the economy returns following temporary shocks. Model dynamics are significantly different from those of a setup in which terms of trade movements perform all the international adjustment and net foreign assets do not move. The difference relative to a complete markets economy in which net foreign asset movements play no role in shock transmission is smaller. It is amplified if the substitutability across goods rises and if shocks are permanent. 相似文献
4.
Summary The exact mean square error for the ratio estimator of a finite population total based on simple random sampling without replacement
is shown to have an expected value less than that of the variance of the ratio estimator based on Midzuno’s scheme, under
a usual super-population model. 相似文献
5.
各种指数基金模型的实证比较分析 总被引:2,自引:0,他引:2
在指数基金管理方面,存在着多种优化的指数投资组合的构建方法和绩效评估方法,本文以实证研究的形式,比较分析了由5种“选股”方法和5种“资金配置”方法所构成的25种投资组合在各种绩效评估方法下的表现。最终得出结论认为,在遗传算法下利用DMinMax模型配置资产权重将具有较好的投资绩效。 相似文献
6.
我国证券投资基金业绩的持续性研究 总被引:1,自引:0,他引:1
以上海证券交易所上市的10只同质的基金为样本,分三个阶段对基金业绩的持续性进行了实证分析,结果表明我国证券投资基金的业绩并不具有持续性. 相似文献
7.
Flexible firms compete by means of wages in the Assignment market while rigid firms have no flexibility over terms of appointment in the Marriage market. Workers trade with both kinds of firms in the hybrid market.Examples show that standard results that characterize the core of the Marriage market (respectively, Assignment market) are not robust to the entrance of flexible (respectively, rigid) firms to this market. A new algebraic structure provides a different characterization for the core of the hybrid model and reflects a sort of robustness to the exit of rigid (respectively, flexible) firms from this market. Meaningful comparative static results are derived. 相似文献
8.
Natural resources, capital accumulation and the resource curse 总被引:2,自引:0,他引:2
Richard M. Auty 《Ecological Economics》2007,61(4):627-634
Early concern by economists for the effect of natural capital on economic growth gave way to complacency and neglect during the nineteenth century. Evidence has emerged, however, that since the 1960s the economic performance of low-income countries has been inversely related to their natural resource wealth. This relationship is not a deterministic one so policy counts. SEEA can help improve the policy and performance of resource-abundant low-income countries by reinforcing the rationale for the sound management of natural resources and also by providing an index of policy sustainability in the form of the net saving rate. This policy index, along with other measures such as a capital fund for sterilizing the rent, initiatives to increase the transparency of rent flows and the rigorous evaluation of alternative uses of additional public sector revenue can improve the efficiency by which natural resource rent is transformed into alternative forms of capital to sustain rising social welfare. Chad and Mauritania provide case studies to illustrate how SEEA and net saving can be used to diagnose policy failure and improve economic performance. 相似文献
9.
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
10.
实物期权是以实物资产为标的物的未来选择权。实物期权的思想目前已被西方的学者广泛地用于会计的 实证研究当中,然而国内却鲜有学者涉足这一领域。因此本文试就此做出简要的介绍,以期起到抛砖引玉的作用。 相似文献