敏捷企业的敏捷性指标评价体系与方法研究

敏捷企业敏捷性度量是企业敏捷化所不可或缺的步骤。对企业敏捷性的体系构建与评价是目前研究的一个热点问题。该文在综述了国内外的企业敏捷性研究文献基础上,构筑了一个基于实效的敏捷性评价指标体系,提出新的评价方法,并结合案例进行了分析,从而为更准确地评价敏捷企业的敏     

A two–stage approach to additive time series models

For nonlinear additive time series models, an appealing approach used in the literature to estimate the nonparametric additive components is the projection method. In this paper, it is demonstrated that the projection method might not be efficient in an asymptotic sense. To estimate additive components efficiently, a two–stage approach is proposed together with a local linear fitting and a new bandwidth selector based on the nonparametric version of the Akaike information criterion. It is shown that the two–stage method not only achieves efficiency but also makes bandwidth selection relatively easier. Also, the asymptotic normality of the resulting estimator is established. A small simulation study is carried out to illustrate the proposed methodology and the two–stage approach is applied to a real example from econometrics.     

论会计教学方法

会计教学方法是完成会计教学任务的手段。教师要全面熟悉和掌握有关的会计教学方法。本文结合现代会计工作实践要求，面向本世纪及会计环境的变化，对会计教学方法进行了探讨。     

混业经营条件下金融监管效率的比较研究

近年来,主要发达国家均放弃了对金融分业经营的严格规定,实行混业经营,金融混业经营浪潮再度掀起。随着各国金融业混业经营趋势的逐渐明显,我国现阶段实行的分业监管模式显然已经缺乏发展的基础。从前瞻的角度看,分业监管模式在防范和化解金融风险、维护金融业有序竞争的监管功能方面面临弱化的处境。因此对目前的中国而言,选择一个适当的金融监管模式,对金融业进行更有效率的监管就显得十分必要。文章正是以混业经营为背景,对美国1999年金融监管模式改革前后的金融监管效率进行了比较分析,希望对我国未来金融监管模式的建立有一定的借鉴     

Effects of EU dairy policy reform for Dutch dairy farming: a primal approach using GMM estimation

This paper estimates a production function for milk using ageneralised method of moments estimator to avoid the endogeneityproblem. Using the first-order conditions for profit maximisation,the economic effects for individual Dutch dairy farms of the2003 EU dairy policy reform are analysed. With an expected milkprice decrease of 21 per cent, profit decreases on average by22 per cent. EU direct payments compensate for roughly 53 percent of this fall in profit. The profit reduction means that69 per cent of all small farms have negative income from farming,compared with 15 per cent in the initial situation.     

浅论企业纳税筹划

纳税已成为财务管理的重要职能之一，并发挥着越来越重要的作用。但是，就我国企业纳税筹划的现状而言，还存在许多令人担忧的问题：第一，企业纳税筹划意识淡薄；第二，企业纳税筹划观念陈旧；第三，企业纳税筹划理论体系落后。提高企业纳税筹划水平需从以下几个方面入手：首先应树立正确的纳税筹划意识，其次要进行纳税筹划理论创新，最后要提高企业纳税筹划水平。     

Instrumental variable estimation based on grouped data

The paper considers the estimation of the coefficients of a single equation in the presence of dummy intruments. We derive pseudo ML and GMM estimators based on moment restrictions induced either by the structural form or by the reduced form of the model. The performance of the estimators is evaluated for the non-Gaussian case. We allow for heteroscedasticity. The asymptotic distributions are based on parameter sequences where the number of instruments increases at the same rate as the sample size. Relaxing the usual Gaussian assumption is shown to affect the normal asymptotic distributions. As a result also recently suggested new specification tests for the validity of instruments depend on Gaussianity. Monte Carlo simulations confirm the accuracy of the asymptotic approach.     

天然气输销过程中的输差计算及其控制

结合燃气输销企业生产现场的实际情况，分析了输差产生的原因，给出了正确的统计方法并提出了合理的控制措施。     

A NEW METHOD OF PRICING LOOKBACK OPTIONS

A new method for pricing lookback options (a.k.a. hindsight options) is presented, which simplifies the derivation of analytical formulas for this class of exotics in the Black-Scholes framework. Underlying the method is the observation that a lookback option can be considered as an integrated form of a related barrier option. The integrations with respect to the barrier price are evaluated at the expiry date to derive the payoff of an equivalent portfolio of European-type binary options. The arbitrage-free price of the lookback option can then be evaluated by static replication as the present value of this portfolio. We illustrate the method by deriving expressions for generic, standard floating-, fixed-, and reverse-strike lookbacks, and then show how the method can be used to price the more complex partial-price and partial-time lookback options. The method is in principle applicable to frameworks with alternative asset-price dynamics to the Black-Scholes world.     

中外科技合作模式评价实证研究

采用主成分分析法与熵权法，以江苏省13家典型中外科技合作企业为样本，对中外科技合作模式进行量化指标的实证分析，并得出结论：技术辐射型中外科技合作模式为中外科技合作的最优模式。