西安市泔水油循环利用模式研究

伴随我国餐饮业的高速增长,泔水油问题日益严重。但是目前论述泔水油问题的文章还很少,涉及泔水油循环利用的更少。本文分析了西安市泔水油利用现状,包括泔水油的总量、流向、清运、处置方式、各渠道的流量比例及西安市治理泔水油的政策历程。在此基础上,借鉴国内外的经验,提出了西安市泔水油循环利用的新模式,以及在这种新模式下泔水油循环利用的基本原则、政府的角色等。     

Reduced Form Auctions Revisited

This note uses the Theorem of the Alternative to prove new results on the implementability of general, asymmetric auctions, and to provide simpler proofs of known results for symmetric auctions. The tradeoff is that type spaces are taken to be finite.     

Property rights protection and access to bank loans

Poor protection of private property has limited the access to bank loans by private enterprises in developing and transition economies. Under those circumstances, private entrepreneurs have resorted to various ways of enhancing the de facto protection of private property. Using a dataset of 3,073 private enterprises in China, this paper empirically investigates the impact of political participation and philanthropic activities – informal substitutes for the lack of formal protection of private property – on the access to bank loans.     

经理股票期权与会计信息失真

本文分析了经理股票期权的激励原理,对它的理论假设提出了质疑,从而揭示了这一激励机制产生偏差的根本原因,并从本源上探寻了经理股票期权与会计信息失真的联系。     

Monotonicity of Rank Statistics in some Non–parametric: Testing Problems

For some non–parametric testing problems (one–sided two–sample problem, k –sample trend problem, testing independence against positive dependence) a partial ordering, denoted by ≥, over the alternatives is defined. This partial ordering expresses the strength of the deviation from the null–hypothesis. All familiar rank tests turn out to become more powerful under "increasing" alternatives; that is, all familiar rank statistics preserve the ordering stochastically in samples whenever it is present between underlying distributions. As a tool, the sample equivalence of ≥ is introduced as a partial ordering over pairs of permutations. Functions, defined on pairs of permutations, which preserve this ordering are studied.     

Testing equality of variances in the analysis of repeated measurements

The problem of comparing the precisions of two instruments using repeated measurements can be cast as an extension of the Pitman-Morgan problem of testing equality of variances of a bivariate normal distribution. Hawkins (1981) decomposes the hypothesis of equal variances in this model into two subhypotheses for which simple tests exist. For the overall hypothesis he proposes to combine the tests of the subhypotheses using Fisher's method and empirically compares the component tests and their combination with the likelihood ratio test. In this paper an attempt is made to resolve some discrepancies and puzzling conclusions in Hawkins's study and to propose simple modifications.
The new tests are compared to the tests discussed by Hawkins and to each other both in terms of the finite sample power (estimated by Monte Carlo simulation) and theoretically in terms of asymptotic relative efficiencies.     

论提高我国本土会计师事务所竞争力的策略

国际四大所并购我国本土所的趋势已经开始显现,在这种情况下我国会计师事务所需要分析本行业的竞争现状。本文通过分析表明,我国会计师事务所既有优势、机会,也存在极大的劣势、危胁。笔者认为我国会计师事务所要采取完善公司治理、“产品”差异化、专业化、品牌化、人才、审计质量与风险控制等策略,以提高我国会计事务所的竞争力。     

Behind closed doors: Sex bias at professional and managerial levels

U.S. companies have made important strides in combating sex discrimination in the workplace over the last two decades, but more subtle forms of sex bias still exist, often in decisions and behaviors that occur behind closed doors. This paper focuses on sex bias at professional and managerial levels. It explores sources of sex bias in the informal culture, selection and recruitment, task assignment, performance appraisal, promotion, and salary allocation, and then suggests action steps to help reduce sex bias in each of these areas.     

供应链管理下的采购管理方法辨析

如何对物料采购实施有效的管理以获取竞争优势是由物料的多种因素综合决定的。文章在分析传统ABC分类法的基础上,给出了一种依据价值、质量影响及市场采购的难易程度的一个三维分类模式,并分析给出了在供应链管理下不同物料的采购管理要点。     

对西方思想史中人的素质思想的考察

西方思想史实际上就是一部以人为中心的历史,它以人为出发点和考察对象,从古至今的思想家们自觉不自觉地涉及到了人的素质这一问题,本文纵向考察了从古希腊开始一直到近现代的西方思想家们对人的素质问题的论述,勾勒出西方人学思想发展的基本脉络,这对于我们今天在社会主义建设中如何认识和促进人的素质的发展具有非常重要的启示和意义。