企业多元化经营战略

企业在进行多元化经营的过程中,要确定战略目标,认清经营风险,找出企业在进行多元化经营过程中出现的问题,认真分析影响多元化经营成败的因素,将核心竟争力作为企业多元化经营的根本依托。     

二进数布尔代数的几个应用结果

本文讨论了二进数所成的布尔代数以及它与X幂集P(X)所成的布尔代数之间的同构关系，利用其解决关于子集的交集、并集的计数问题，关于交错k-子集的计数问题和关于交错R-子集的计数定理。     

浅谈中学化学教学中的问题设计

本文论述了中学化学课堂教学中的"问题设计"及其对提高教学质量的作用.     

德州市民营担保公司风险管理与评估体系的构建

虽然提法有所差别,但民营信用担保机构风险管理与评估指标体系至少应把来自于政府政策创造的制度环境、作为资金需求方的民营企业信用等级评价标准、作为资金使用供求中介的信用担保机构资质评价标准纳入范畴。     

完善企业境外投资的财政金融政策支持体系

随着经济全球化的发展,企业跨国投资的步伐愈来愈快。在跨国投资过程中,企业也会面临各种困难与风险。发达国家在企业跨国投资过程中,运用税收、信贷、保险等金融手段对境外投资给予促进和必要的制约,从而分散企业的经营风险。我国企业在跨国投资过程中,也应该借鉴国际经验,建立和完善企业境外投资的税收制度,加大企业信贷优惠政策扶持力度,完善企业境外投资保险制度、企业境外投资准备金制度、中小企业境外投资的融资政策等,以分散企业的经营风险。     

Bounding,An Accessible Method for Estimating Principal Causal Effects,Examined and Explained

Estimating treatment effects for subgroups defined by posttreatment behavior (i.e., estimating causal effects in a principal stratification framework) can be technically challenging and heavily reliant on strong assumptions. We investigate an alternative path: using bounds to identify ranges of possible effects that are consistent with the data. This simple approach relies on fewer assumptions and yet can result in policy-relevant findings. As we show, even moderately predictive covariates can be used to substantially tighten bounds in a straightforward manner. Via simulation, we demonstrate which types of covariates are maximally beneficial. We conclude with an analysis of a multisite experimental study of Early College High Schools. When examining the program's impact on students completing the ninth grade “on-track” for college, we find little impact for ECHS students who would otherwise attend a high-quality high school, but substantial effects for those who would not. This suggests a potential benefit in expanding these programs in areas primarily served by lower quality schools.     

Mitigating the Effects of Poverty and Crime: the Long-Term Effects of an Early Intervention Programme for Children who were Developmentally Delayed and Prenatally Exposed to Cocaine

This study explores the long-term impact on participation in the Linda Ray Intervention Program (LRIP) for children (n = 54) who were developmentally delayed and prenatally exposed to cocaine. By identifying a group of programme graduates from a high crime/high poverty neighbourhood in Miami-Dade County using ArcGIS 10.2 software, a quasi-experimental design was used to compare children living in this area who participated in the centre-based modality (5 h a day; 5 days a week) to children living in this area who participated in the home-based modality (3 h per week) on their Florida Comprehensive Assessment Test (FCAT) reading and math scale scores in public school. The children who participated in the centre-based modality reported stronger outcomes in both math and reading FCAT scale scores at the p < .05 level and also out-performed their school-age peers on both math and reading FCAT scores at the p < .05 level.     

VaR模型在我国养老基金投资风险控制中的应用

养老基金的投资面临多种风险,要实现其保值增值,必须进行风险度量和监控。VaR模型作为一种新的金融风险管理工具,因其有别于传统的金融风险管理工具的特点,在西方受到广泛青睐。探讨该模型在我国养老基金投资风险控制中的应用。     

水电建设项目风险评价方法概述

水电建设项目受地质、地理位置,气候等一些自然或非自然因素的影响,不可避免地存在诸多风险因素,业界相继对风险识别、风险分析以及风险评价等做了深入研究,但鲜有人概括了水电建设项目前的常用的风险评价方法。通过对水电建设项目前存在的风险评价方法进行概括,在其中提出了一种新的改进的评价方法,并比较分析了各自的适用条件以及优缺点,能为水电建设项目合理选择使用评价方法提供了有效的参考依据,进而能使风险预测与客观实际相接近。