浅议计算机在工程造价中的利用

信息技术的发展伴随着计算机的普及进入到千家万户,在工程造价领域,计算机的作用越来越重要,不但可以根据图纸自动生成工程量,而且节省了大量的人力劳动,同时对于信息的传递也起着重要的作用,对于工程造价的审计工作以及交流沟通带来更大的便利。     

The return to education and its distribution in urban China: evidence from quantile regression analysis

Based on Chinese Households Income Projects in 2002, this paper discusses the relationship between the return to education and the quantiles of income distribution. The findings in this paper show that the return to education is lower for the higher quantiles, while the estimators also depend on the choice of control variables. The methodology of the quantile regression might be helpful in adjusting the ability bias in the estimation on return to education. The policy implications of the paper highlight the impact of the education expansion in boosting the income growth for those in lower quantiles.     

重庆市渝中半岛集中仓储配送可行性研究

主要分析了重庆渝中半岛实行集中仓储配送的可行性以及其能够为企业带来的巨大的经济效益。通过实施集中仓储配送来完善物流设施，建设物流网络，形成高水平的物流服务能力，提升重庆的影响力、辐射力、积聚力。     

新疆现代物流业发展网络布局探析

发展现代物流业对提高区域竞争力，获得有力竞争地位有着重要作用。新疆属于经济欠发达地区，发展现代物流业是其经济发展的必然选择。作者对新疆发展现代物流业进行了可行性分析，在此基础上对新疆发展物流业的网络布局进行了初步探讨。     

上海市燃气电厂专线优化选择

管道物流作为物流的一个分支在燃气的运输方面起到了重要作用。作者通过把上海市燃气电厂专线配送管网系统采用物流运输方法模型进行了优化选择，获得了较经济的规划天然气配送方案，对其他管网的优化选择也具有实际参考意义。     

Hicks's Valuation of Social income: an appraisal *

This paper attempts to reconstruct and assess the intellectual itinerary of Hicks on the valuation of social income. His 1958 and 1981 papers on that topic have been wholly ignored in the economic literature. In both of them differentmeasures of real income are provided. These show to what extenteach one of them can be relied upon. Our assessment argues that it is impossible to measure social income independentlyof the reasons for which that measure is required and that any valuation cannot ultimatelybe made independently of political and ethical considerations.     

建筑工程造价管理探析

建筑工程造价管理是建设工程项目管理工作的重要组成部分。文章结合实际，对企业如何加强建筑工程造价管理提出了建议，具有一定的借鉴意义。     

Anxiety disorders,major depressive disorder and the dynamic relationship between these conditions: treatment patterns and cost analysis

Abstract

Objective: To determine the treatment pattern and impact on healthcare costs of anxiety disorders and major depressive disorder (MDD), and influence of their concomitance and subsequence.

Methods: A retrospective cohort study was conducted using a US reimbursement claims database. Adult patients with an incident diagnosis of anxiety or MDD (index date) were included. Their sociodemographic data, diagnoses, healthcare resource use and associated costs were collected over the 6 months preceding and 12 months following index date.

Results: A total of 599,624 patients were identified and included. Patients with phobia or post-traumatic stress disorder had the highest 12-month costs ($8,442 and $8,383, respectively). Patients with social anxiety disorder had the lowest costs ($3,772); generalized anxiety disorder ($6,472) incurred costs similar to MDD ($7,170). Costs were substantially increased with emergence of anxiety during follow-up in MDD patients ($10,031) or emergence of MDD in anxiety patients ($9,387). This was not observed in patients with both anxiety and MDD at index date ($6,148).

Conclusion: This study confirms the high burden of costs of anxiety, which were within the same range as MDD. Interestingly, the emergence of anxiety or MDD in the year following a first diagnosis of MDD or anxiety, respectively, increased costs substantially. Major limitations were short follow-up and lack of absenteeism costs.     

ASYMPTOTIC BEHAVIOR OF DISTRIBUTION DENSITIES IN MODELS WITH STOCHASTIC VOLATILITY. I

We study the asymptotic behavior of distribution densities arising in stock price models with stochastic volatility. The main objects of our interest in the present paper are the density of time averages of a geometric Brownian motion and the density of the stock price process in the Hull–White model. We find explicit formulas for leading terms in asymptotic expansions of these densities and give error estimates. As an application of our results, sharp asymptotic formulas for the price of an Asian option are obtained.     

宏观经济波动的微观基础:基于股权配给角度的分析

当宏观经济进入衰退阶段,由于上市公司的股权配给,上市公司投资的边际破产成本上升,导致上市公司的投资下降,在投资乘数原理和加速数原理的相互作用下,会使宏观经济衰退更加严重,宏观经济陷入经济衰退与股权配给相互作用的恶性循环中,宏观经济衰退的程度会进一步加大。当宏观经济进入繁荣阶段,呈现与上述相反的过程,会导致宏观经济持续过度繁荣。因此,股权配给是宏观经济波动的加速器。我国的现实是,从微观角度分析,上市公司具有强烈的股权融资偏好;从宏观上看,政府进行股权配给。两者的共同作用,使股权配给具有平抑宏观经济波动的功能。