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1.
The literature on the theory of public procurement points out two well-known informational problems arising out of information asymmetry: (i) adverse selection and (ii) moral hazard. To reduce these issues and foster credibility and trust in the procurement process while maintaining quality and efficiency in public procurement, e-procurement platforms have turned to reputation or rating systems. Therefore, the research and design of such rating systems are crucial. In this study, we discuss the theoretical underpinnings of procurement and employ the information-theoretic, regression analysis, artificial neural network and principal component analysis (PCA) approaches to estimate the weights of the variables entering the rating system. Using real data from Government e-Marketplace, a business-to-business public e-commerce portal, we empirically determine the weights of the rating variables derived from the transaction-level and user feedback data for sellers. The weights obtained from the PCA are the most applicable compared with the other three methods. We compare the old rating system with the newly proposed design using the Wilcoxon signed-rank test. This results in a statistically significant difference between the two ratings. The canonical correlation and Wilks' trial reveal that the ratings derived from transaction-level data and user feedback are uncorrelated to a great extent. Hence, considering only transaction-level data or user feedback is unlikely to divulge sellers' intrinsic worth. E-commerce platforms can use this approach to quickly implement methods to obtain rating scores on a real-time basis for sellers on online platforms. 相似文献
2.
We consider a leader and a subordinate he appoints who work in a team. The public observes the organization’s performance, but not the separate contribution of the leader or of the subordinate. The leader may therefore claim credit for the good work of his subordinate. We find conditions which induce the leader to claim credit (both truthfully and untruthfully), and the conditions which lead the leader to appoint a subordinate of low ability.JEL Classification:
M5Björn Segendorff gratefully acknowledge financial support from The Swedish Council for Research in Humanities and Social Sciences (HSFR, F0357/97). We are also grateful for comments by an anonymous referee. 相似文献
3.
Links between the reputation of organizations and their financial performance are intuitively attractive to assume, but often difficult to demonstrate convincingly. Gaps between employee and customer perceptions of corporate reputation have traditionally been associated with poor performance. In the context of service business and applying assimilation‐contrast theory, we hypothesize that the nature of such gaps will, in reality, have a differential effect on future revenue depending on the size and valence of the gap. The effects of small gaps should be assimilated by customers, but larger ones have a greater potential of creating a contrast effect resulting in significant increases or decreases in subsequent sales. In businesses where employees have a more positive view of the company reputation than customers, we hypothesize a growth in future sales, and where they have a relatively more negative view, a decline. We test the effects of what we label as reputation gaps in 56 business units drawn from nine service organizations and confirm our hypotheses. Among the implications of our findings are that managing reputation by elevating employee perceptions of a company's reputation above those perceived by its customers holds the potential to enhance future sales. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
4.
本文在国内较早对审计师变更后上市公司对审计师的选择行为及其经济后果进行了较为全面地实证研究,并首次比较了自愿性和强制性两种不同审计师变更的差异,运用1997-2001年的数据,我们发现,强制性变更公司和自愿性变更公司在变更前后的财务状况、审计师选择、审计意见均存在着较大的差别,并且,这些审计师选择行为与审计意见的回归结果也存在重大差异,相比之下,自愿性变更公司表现出更明显的"意见购买"迹象,它们通过选择一贯对客户出具非标比例较低的"温和"审计师这种较为隐蔽的行为在一定程度上实现了其目的. 相似文献
5.
大股东资金占用与审计师的监督 总被引:7,自引:0,他引:7
本文研究审计师对大股东占用上市公司资金行为的监督作用。通过对1997年到2002年间的上市公司进行分析,我们发现随着大股东资金占用程度的加大,审计师更加倾向于出示非标准意见。在大股东占用资金最多的10%的公司年度中,审计师出示非标准意见的概率高达近50%。在控制了其他影响审计师意见的变量以后,大股东资金占用程度仍然是决定审计意见的一个非常显著的因素。这说明我国的审计师对中国资本市场出现的大股东资金占用问题有一定的认识,并且将其反映到审计师意见中去。我们进一步的分析发现: (1)被审计师出具了非标准意见的公司,其大股东占用资金反而更加持续。这说明审计师意见对公司的监督意义不大,公司并没有因为审计师的意见而减轻占用程度。(2)被审计师出具了非标准意见的公司,其大股东占用对未来的股票收益的负影响与其他公司并没有区别。这说明投资者对审计师的意见并没有给予足够的重视。本文的研究结果说明,审计师对大股东盘剥中小股东的现象进行了监督、对大股东资金占用严重的公司出示了更多的非标准意见,然而这些非标准意见并没有引起各方面的重视,一方面公司的治理并没有改善,另一方面投资者也没有因审计师的意见而避免更多的损失。 相似文献
6.
通过对我国252家沪深上市企业的实证检验,研究在保荐承销制下我国承销商声誉在IPO抑价中的有效性。得出结论:在保荐核准制下我国承销商声誉并没有充分发挥作用;其次,作为询价制度体现的网下配售比例在中小板块发挥作用,肯定了其在提高发行市场效率中的作用。 相似文献
7.
Ferdinand A. Gul Simon Yu Kit Fung Bikki Jaggi 《Journal of Accounting and Economics》2009,47(3):265-287
Prior studies suggest that auditors with short tenure are associated with lower earnings quality because of the lack of client-specific knowledge and/or low balling. In this study, we examine whether industry specialization of auditors and low balling affect the association between auditor tenure and earnings quality. We find that the association between shorter auditor tenure and lower earnings quality is weaker for firms audited by industry specialists compared to non-specialists. In addition, we do not find results consistent with the low balling explanation. 相似文献
8.
基于博弈论视角,从理论上构建了金融机构与大学生消费信贷决策的动态博弈模型,并引入信誉机制,比较分析了传统金融机构退出大学生信用卡市场而互联网金融大举进入校园信贷市场的深刻原因,同时借助大学生消费信贷调查一手数据实证检验了信誉机制的有效性,研究结果表明:在单次和有限次重复博弈中,“囚徒困境”普遍存在,而在无限次重复博弈中,尽管利率和交易成本下降有利于促进交易,但信息不对称问题却使博弈只能进行有限次,因此要达成长期合作,必须引入具有“社会性惩罚”的信誉机制来抑制大学生的短期投机行为,然信誉机制对于促进传统金融机构与大学生合作的作用有限,更多的是促进互联网金融机构与大学生消费信贷关系的达成,实证结果验证了该结论。由此得到的启示是,充分利用互联网大数据优势、强化互联网金融市场监管、引导大学生树立正确的消费观和责任意识,有助于破解“一放就乱,一管就死”的监管困局,这对于规范互联网金融校园消费信贷市场具有重要现实意义。 相似文献
9.
We investigate whether non–Big 4 auditors have enhanced their ability to resist client pressure over accrual reporting following the Sarbanes‐Oxley Act (SOX). Regressing abnormal accruals on proxies for economic bonding, we find that changes in the association, defined as (Post–Pre), are significantly negative, implying an improvement in auditor independence after SOX. Among non–Big 4 auditors, only Tier 3 auditors compromised reporting objectivity before SOX, but neither Tier 2 nor Tier 3 auditors yielded to client pressure after SOX. Evidence that these two groups of non–Big 4 auditors differ in the way they cope with client pressure in a loose regulatory regime highlights the importance of assessing the efficacy of SOX separately for subsets of auditors and contributes to an understanding of the underresearched, but inherently important, segment of the audit market served by non–Big 4 auditors. Further analysis indicates that the low pre‐SOX audit quality observed in the full sample is driven by non–PCAOB registrants. 相似文献
10.
20世纪中期以来,企业社会责任的研究在全球范围内兴起。伴随半个多世纪的争议与讨论,企业应该履行社会责任的观念得到广泛认可,但碍于其所需付出的成本,管理者却普遍缺乏动力。以往的研究虽然致力于在企业社会责任和经济绩效之间建立相关关系,但结论并不一致,其原因主要在于二者之间的作用机理尚未揭示出来。本文认为企业社会责任不仅不是企业成本的沉重负担,反而是构成企业价值创造系统的重要组成部分。文章分析了企业社会责任对当前价值、未来价值和潜在价值的作用机理,提出了一个三维价值创造的概念模型,将该领域研究的零散内容系统化,为企业管理者提供了履行社会责任的理论支撑。 相似文献