叠合箱受弯性能的试验研究与分析

混凝土叠合箱网梁楼盖是一种新型的楼盖形式,是由小型预制构件(混凝土叠合箱)与现浇混凝土肋梁结合成具有连续箱型截面的整体结构。本文通过对网梁楼盖的3块构件进行抗弯性能试验,得到了楼盖在受弯时的破坏机理,给出了截面抗弯承载力计算方法,为此种新的构件形式的工程应用提供了依据。     

通货膨胀冲击的财产再分配效应——基于中美两国的比较研究

本文利用微观调查数据研究了中美两国通胀冲击的财产再分配效应。本文的定量研究结果表明,通胀冲击将侵蚀中国家庭部门的财产,并进一步恶化家庭间的财产分布;而美国的情况却截然相反。从通胀再分配效应的视角出发,本文建议我国在制定货币政策时应当更加重视民生目标,逐步建立起多种形式的通胀补贴制度,以增强社会底层的通胀承受能力。     

China's New Role in the International Financial Architecture

The rise of China is challenging the international financial architecture in a number of ways. This paper highlights three that are of critical importance: the challenge of absorbing massive Chinese savings; the incorporation of China into a cohesive global financial safety net; and the organisation of China's participation in funding the demand for international investment projects. The global financial architecture needs to be reformed. But what role should China play? The paper defines the options open to China and the opportunities and barriers it will face. We argue that China can work with the established economic powers in reforming the existing architecture. At the same time, China seeks cooperation in building new institutions and organisations that fill gaps in the existing arrangements. But no matter how international financial diplomacy plays out in the near term, deep financial and economic reform at home will alone deliver China a central role in the international financial architecture. Domestic reform could also attend to some of the challenges that currently plague China's impact on the system. The success or failure of these domestic reforms will be at the crux of the strength or fragility of the international financial architecture in the years ahead.     

Determinants of the adjusted net saving rate in developing economies

The adjusted net saving rate, initially known as the genuine saving rate, was first published by the World Bank in the late 1990s as a more comprehensive measure of national saving and one more indicative of sustainable development. The adjusted net saving rate incorporated not just physical capital depreciation, but natural capital depletion and environmental damage, as well as including some human capital formation. In this paper, using a cross‐section of developing economies for 2001–2006, determinants of the adjusted net saving rate are estimated. For comparison, the same determinants for the gross national saving rate are estimated. Also, a basic Solow growth model is extended to incorporate natural resources and to justify a more comprehensive measure of savings, such as the adjusted net saving rate, for modeling economic growth. The two measures of savings are then compared as determinants in estimations of economic growth. Understanding the determinants of the adjusted net saving rate is useful for policies to promote sustainable development.     

大股东的所有权与企业的投资行为研究

Jensen和Meckling早在1976年就指出股权结构影响企业价值,而这一过程是通过影响投资实现的,但是一直缺乏有说服力的经验结果的支持。本文以2004～2007年1039家上市公司共4156个观察值为研究样本,从第一大股东股权的视角出发,研究了股权结构与公司投资水平之间的关系。研究发现,中国上市公司第一大股东的持股比例与公司的投资支出之间存在“下降-上升-下降”的“倒N”型的非线性关系;进一步研究后发现,持股比例在10％～20％的区间投资水平达到最小值,在60％～70％的区间达到最大值。但是这种“倒N”型的非线性关系只存在于非国家控股的公司,当第一大股东为国家股时,这种非线性关系会变得不显著。本文的研究为治理当前我国企业普遍存在的非效率投资、提升企业价值提供了经验证据。     

新型农村社会养老保险替代率精算模型及其实证分析

本文依据2009年国务院发布的《关于开展新型农村社会养老保险试点的指导意见》,运用保险精算的方法,构建出新农保替代率精算模型,并依据该模型对新农保替代率进行实证分析。通过分析提出以下建议:以农民人均纯收入作为缴费基数,实行比例费率制;鼓励农民尽早开始参保并保持长期缴费;鼓励参保农民选择较高的档次标准缴费;新农保个人账户基金应当在适当情况下进行市场化投资运营;继续强化土地保障和家庭保障的作用。     

基于asp.net大学生体育选课系统的开发与设计

采用文献资料法和专家访谈等方法对高校公共体育网络选课管理进行调查、研究.此研究充分利用了ASP.NET的技术优势,构建了公共体育网络选课管理系统,以期为今后的大学生公共体育网络选课管理科学化进行有益的尝试.     

差分GPS在广西中越国境界河平而河平而关河段整治工程中的应用

界河整治工程的目的是保护国土,防止国土流失,维护国土完整。由于界河整治工程涉及边境问题,因此对测量控制网的精度要求很高。文章简要介绍GPS技术在此类工程测量中的应用。     

实物期权理论在钢铁企业烧结机头脱硫项目投资决策中的应用

文章提出了在烧结机头脱硫项目投资决策中引入实物期权的基本思路和模型,并讨论了实物期权模型的应用方法。     

Use of a diagnosis-based risk adjustment model to estimate costs of indigent care in a community at Medicaid reimbursement rates

Objectives: This study used a diagnosis-based risk adjustment model to estimate the annual costs of uninsured patients in Austin, Texas, and describe the prevalence and costs of their chronic conditions. The data were supplied by the Indigent Care Collaboration, a partnership of local safety-net hospitals and clinics.

Methods: This study used the Diagnostic Cost Groups prospective Medicaid All-Encounters model, which uses diagnoses, age and gender to assign relative risk scores to patients. The relative risk scores were multiplied by the per capita Texas Medicaid expenditure to obtain estimated annual costs. Chronic diseases were described in terms of prevalence and total estimated annual cost.

Results: A total of 471,194 encounters were recorded for 163,729 patients meeting the study inclusion criteria between the 1st March 2004 and the 28th February 2005. The mean estimated patient yearly cost was US $1,307, and the total estimated yearly population cost was $228,909,529. The most common chronic conditions included hypertension, diabetes, depression, substance abuse, pregnancy, asthma, chronic obstructive pulmonary disease and congestive heart failure.

Conclusions: This study demonstrates how the unknown costs associated with caring for indigent uninsured patients in a community can be estimated at Medicaid reimbursement rates using the Diagnostic Cost Group model on aggregated patient encounter data.