企业集团内部资本市场有效性及影响因素研究

内部资本市场的研究大多关注存在性和效率问题,对内部资本市场有效性的影响因素关注较少。在投资-现金流的分析框架下,以2009-2012年沪深两市的上市公司及其附属集团为研究对象,构建企业投资加速模型,从组织结构的角度研究影响内部资本市场有效性的因素。研究结论显示：一方面,我国企业集团的内部资本市场是有效的,国有企业集团内部资本市场的有效性强于非国有企业集团;另一方面,集团所有权对内部资本市场有效性的影响不显著,但财务公司的设立对提升内部资本市场的有效性起了积极的促进作用,非国有企业集团财务公司的职能实现比国有企业集团更加有效。     

新疆入境外国游客客源市场分析基于亲景度、竞争态及SSM

分析新疆入境外国游客客源市场,明确市场的发展现状、存在问题和未来趋势,更有利于旅游业快速发展。运用亲景度、竞争态和SSM方法,借助有关统计数据,从不同角度探讨新疆入境外国游客客源市场的研究结果表明:各客源国入境外国游客对新疆的整体亲景度稳中下降;市场竞争态整体良好,但某些客源国市场增长率明显缓慢;市场竞争力在全国较强,但市场结构欠佳。针对各客源市场的不同,提出了相应的发展对策。     

基于市场化运营导向的铁路运输清算激励机制研究

依据现行铁路运输清算办法,对京哈、京沪等重点线路客货运输清算收入的实例分析发现,铁路局开行客货列车的意愿与全路收益最大化目标不一致。直通客货运输、管内与直通运输、清算收入与成本支出之间存在一定程度的激励机制缺失,不利于铁路运输企业的市场化运营。建议从清算类别、清算标准以及清算机制等方面完善现有清算体系,建立符合全路收益最大化和运力资源集约化利用的铁路运输经济激励机制。     

政府信息沟通存在的障碍及其创新路径——基于群体事件的语境分析

近年来,随着群体性事件数量的不断攀升,破坏性也与日剧增,已然成为影响社会稳定发展的重要因素,亟需政府采取有效措施来治理从而改善和维护政府的公共形象。然而,由于信息沟通机制的不健全,政府在处理群体性事件过程中存在一定的沟通梗塞,使得群体性事件的治理成效深受局限,而通过再造政府内部体系以及拓展外部沟通渠道的“双维”路径,在一定程度上能够提升政府处置群体性事件理应具备的沟通能力。     

Family participation in child protection practice: an observational study of family group meetings

Over the past two decades, child protection authorities internationally have begun to implement models of family participation in child protection decision‐making. Debate exists about the extent to which these models promote family involvement in decision‐making. While a significant body of research on family and professional experience and perceptions of models of family participation in decision‐making has emerged, there has been little observational research of these approaches. In this paper, we report on observational data from 11 family group meetings (FGMs) in a child protection context in Queensland, Australia. Under Queensland child protection law, these meetings are referred to as an inclusive process for child protection decision‐making and planning. We draw on observational data to analyse how family inclusion in child protection decision‐making is facilitated, or limited, by the FGM process. We consider tensions in the realization of a participatory ethos in child protection services systems and discuss what practitioners can practically do to enhance family participation in child protection decision‐making.     

Parents Beyond Borders: A Social Group Work Curriculum for Supporting Immigrant Parents and Building Solidarity

Parents Beyond Borders, a curriculum first implemented in 2008 as part of The Center for Family Life's ParentShip Program, encourages group members to create a shared narrative about their traumatic immigration experiences. The result is twofold. First, immigrant parents gain a more assertive and poignant voice to communicate with family and others in their lives when sharing their family's acculturation experience. Second, because social group work promotes recognition of collective trauma due to the community's experience of marginalization, it improves members' group self-concept and empowers them to take action and advocate for themselves.     

均质岩基极限承载力滑移线解与极限平衡解的比较

极限平衡法、滑移线法是求解剪切破坏模式下均质岩基极限承载力的两种重要的极限分析法。通过对某工程均质岩基承载力的反算 ,对基于Hoek -Brown经验强度准则的 3种极限承载力计算方法—Bell解、Hoek -Brown解和滑移线法的计算结果进行了比较 ,并分析了造成差异的原因。     

法国大革命中的传播活动

法国大革命呈现了不同于英美资产阶级革命的特点.在缺乏现代化传播媒介的法国,谣言、团体和报刊等传播方式在动员和组织群众参与革命、推动革命不断向前发展方面起了重大的作用,形成了法国革命独特的政治风格和文化风格.     

Distance sampling methodology

We consider the method of distance sampling described by Buckland, Anderson, Burnham and Laake in 1993. We explore the properties of the methodology in simple cases chosen to allow direct and accessible comparisons of distance sampling in the design- and model-based frameworks. In particular, we obtain expressions for the bias and variance of the distance sampling estimator of object density and for the expected value of the recommended analytic variance estimator within each framework. These results enable us to clarify aspects of the performance of the methodology which may be of interest to users and potential users of distance sampling.     

Saddlepoint-Based Bootstrap Inference for Quadratic Estimating Equations

Abstract.  We propose an easy to implement method for making small sample parametric inference about the root of an estimating equation expressible as a quadratic form in normal random variables. It is based on saddlepoint approximations to the distribution of the estimating equation whose unique root is a parameter's maximum likelihood estimator (MLE), while substituting conditional MLEs for the remaining (nuisance) parameters. Monotoncity of the estimating equation in its parameter argument enables us to relate these approximations to those for the estimator of interest. The proposed method is equivalent to a parametric bootstrap percentile approach where Monte Carlo simulation is replaced by saddlepoint approximation. It finds applications in many areas of statistics including, nonlinear regression, time series analysis, inference on ratios of regression parameters in linear models and calibration. We demonstrate the method in the context of some classical examples from nonlinear regression models and ratios of regression parameter problems. Simulation results for these show that the proposed method, apart from being generally easier to implement, yields confidence intervals with lengths and coverage probabilities that compare favourably with those obtained from several competing methods proposed in the literature over the past half-century.