On the public provision of the performing arts

In this paper, we present a model in which the performing arts are modelled as congestible public goods. In accordance with empirical evidence, the production of seat capacity is assumed to be subject to fixed costs. We estimate the parameters of the model's demand and cost functions using German data. Using these estimates in a subsequent social choice analysis, we show that the current situation in the German performing arts sector is best described by a directorship that under the influence of a selfish theater lobby maximizes only the welfare of the spectators. Such an equilibrium, characterized by too low ticket prices and too large capacity, is most likely to establish if citizens have a very positive ex ante notion of the performing arts.     

浅谈长螺旋钻孔灌注桩技术在水利工程中的应用

长螺旋钻孔灌注桩施工是工业民用建筑基础处理中经常采用的一种施工技术。文章通过对其在围堤湖分洪闸闸室段基础处理工程中成功应用的阐析,提出它在某些水利工程的基础处理施工中同样可以占据一席之地,并有其独特的优势。     

城市土地集约利用动力机制研究

通过对城市土地集约利用的动力机制的研究,将其划分为内在动力机制和外在动力机制两种类型。其中,内在动力机制主要由聚集效应机制和要素替代机制两方面组成,外生动力主要包括市场驱动机制、政府导向与激励机制、技术创新机制等方面。城市土地就是在内、外在动力机制的共同作用以及多方面因素的制约下,逐步从一种在时间上、空间上的无序状态转变为有序状态的。     

城市公共品供给中各级政府事权与财权的划分

政府在城市公共品供给中需要考虑如何合理划分各级政府的事权与财权.城市公共品的特性是各级政府事权划分的基础,而事权与财权相统一的原则是各级政府财权划分的理论依据.通过对我国城市公共品供给中各级政府间财政关系进行实证研究发现,各级政府在事权划分上存在模糊、重复、越位和缺位的情况,而财权的划分则没有能够实现与相应事权的匹配.因此,需要重新界定各级政府的事权与财权,从而完善政府的城市公共品供给职能.     

工程担保机构对工程建设项目监管的探讨与分析

我国已经建立和推行了工程担保制度,但是推行效果不尽人意,关键在于工程担保机构没有强化对工程建设项目的全面监管与控制,工程担保机构防范风险的作用没有得到充分体现。文章阐述了工程担保机构对工程建设项目全面监管与控制的重要作用,并对监管的内容进行了详尽的分析。     

论机构投资者的持股特征

本文对机构投资者的持股特征进行了全面、系统的理论分析,并介绍国内外在实证研究方面取得 的成果,最后指出在现阶段研究我国证券投资基金持股特征的重要性。     

公共服务绩效管理的流程分析

文章认为公共服务绩效管理不是一个单一的行为过程,而是由许多环节和步骤组成的循环系统流程。公共服务绩效管理是基于公共服务绩效的价值、指标、信息、方法等系统,由制定绩效计划、实施绩效计划、进行绩效评估、开展绩效诊断与反馈、应用绩效评估结果5个基本环节组成。     

论企业职业压力管理机制的建构

企业有效地开展职业压力管理工作,可帮助员工正确地应对、适应和缓解压力,进而有益于企业进步和发展。     

On the stopping boundary for sequential selection of the normal population with the largest mean

This paper provides an improved stopping boundary for open sequential selection of the normal population with the largest mean when all populations have common known variance. The proof relies on the theory of Brownian motion processes with drift.     

A hybrid DEA-MOLP model for public school assessment and closure decision in the City of Philadelphia

Data envelopment analysis (DEA) is generally used to evaluate past performance and multi objective linear programming (MOLP) is often used to plan for future performance goals. In this study, we establish an equivalence relationship between MOLP problems and combined-oriented DEA models using a direction distance function designed to account for desirable and undesirable inputs and outputs together with uncontrollable variables. This equivalence model can be effectively used to support interactive processes and performance measures designed to establish future performance goals while taking into account the preferences of decision makers (DMs). In particular, it allows DMs to consider different efficiency improvement strategies when subject to budgetary restrictions. The applicability of the proposed method and the efficacy of the procedures and algorithms are demonstrated using a case study where the performance of high schools in the City of Philadelphia is evaluated.     

On the speed of convergence of some urn designs for the balanced allocation of two treatments

The present paper deals with sequential urn designs for the balanced allocation of two treatments.Wei (1977, 1978b) was among the first authors to suggest an algorithm based on the probabilistic properties of the generalized Friedman urn and recently Chen (2000) has suggested the Ehrenfest design, namely a sequential procedure based on the Ehrenfest urn process. Some extensions of these algorithms are discussed: in particular we focus on a generalization of Chen's procedure, called the Ehrenfest-type urn designs, recently introduced by Baldi Antognini (2004). By analyzing some convergence properties of the Ehrenfest process, we show that for an Ehrenfest-type urn it is possible to evaluate the variance of the design at each step and analyze the convergence to balance. Furthermore, the generalized Friedman urn and the Ehrenfest-type procedures are compared in terms of speed of convergence. The Ehrenfest design proposed by Chen converges to balance faster than the other urn procedures.     

The conservative equal costs rule, the serial cost sharing rule and the pivotal mechanism: asymptotic welfare loss comparisons for the case of an excludable public project

We examine the asymptotic behavior of two strategyproof mechanisms discussed by Moulin for public goods – the conservative equal costs rule (CER) and the serial cost sharing rule (SCSR) – and compare their performance to that of the pivotal mechanism (PM) from the Clarke–Groves family. Allowing the individuals’ valuations for an excludable public project to be random variables, we show under very general assumptions that expected welfare loss generated by the CER, as the size of the population increases, becomes arbitrarily large. However, all moments of the SCSR’s random welfare loss asymptotically converge to zero. The PM does better than the SCSR, with its welfare loss converging even more rapidly to zero.     

Nash-implementation of the weak Pareto choice rule for indecomposable environments

A feasible mechanism is constructed which weakly Nash-implements the weak Pareto choice rule over a certain class of indecomposable pure-exchange environments, where there may be no private goods whose consumption has no external effects. Received: 30 November 1995 / Accepted: 24 June 1997     

On Estimators of the Nearest Neighbour Distance Distribution Function for Stationary Point Processes

There are three approaches for the estimation of the distribution function D(r) of distance to the nearest neighbour of a stationary point process: the border method, the Hanisch method and the Kaplan-Meier approach. The corresponding estimators and some modifications are compared with respect to bias and mean squared error (mse). Simulations for Poisson, cluster and hard-core processes show that the classical border estimator has good properties; still better is the Hanisch estimator. Typically, mse depends on r, having small values for small and large r and a maximum in between. The mse is not reduced if the exact intensity λ (if known) or intensity estimators from larger windows are built in the estimators of D(r); in contrast, the intensity estimator should have the same precision as that of λ D(r). In the case of replicated estimation from more than one window the best way of pooling the subwindow estimates is averaging by weights which are proportional to squared point numbers.     

关于促进北京市耕地占补平衡实现的探讨

在对现阶段北京市特定社会经济发展背景下农户行为及用地类型转化方向进行基本判断的基础上,指出当前形势下,在生态保护观念深入人心的今天,应通过提高耕地收益来提高农户耕作积极性,并且要结合生态保护这一契机,以保护耕地生态功能来为耕地保护聚集人气,开创耕地保护的新局面,从而缓解耕地减少的状况,并针对北京市不同区域的耕地整理方向提出了自己的见解.     

面向制造业的入厂物流管理模式方案设计探究——以汽车制造企业为例

本文就制造业入厂物流的管理模式进行了探讨,并以汽车制造业为例,给出了入厂物流物料制定方法,并最终提出了入厂物流业务流程设计方案。     

职业院校专业创新团队的运行机制研究——以汽车检测与维修技术专业创新团队为例

本文以北京市职业院校汽车检测与维修技术专业创新团队建设为例,研究了创新团队运行机制,并提出了创新团队高效运行的策略。