A step beside the maximin path: Can we sustain the economy by following Hartwick's investment rule?

If sustainability is interpreted as the requirement to sustain consumption or utility at an optimal level, a maximin objective appears to be relevant. The sustained economy is characterized by an optimal investment following Hartwick's investment rule. This paper examines how the sustainability of a production-consumption economy with a non-renewable resource is modified in the neighborhood of the maximin path, i.e. when the consumption and the resource price are not optimal. A Sustainable Consumption Indicator is introduced in order to characterize the sustainability of constant consumption paths, defined as deviations from the maximin path. We describe how an over-consumption jeopardizes future sustainability.     

Signaling Public Private Partnership Activities: Reporting Behavior Within Annual Reports

This empirical study examines whether, and if so, to what extent, firms report on Public Private Partnership (PPP) projects to signal PPP engagement even beyond legal obligations. The annual reports of the sample’s firms listed on the VSE in 2005 have been investigated in a qualitative and quantitative way to reveal information policy. Annual reports confirming PPP activities are examined qualitatively by an in-depth content analysis to answer the question in which way information about the revealed PPP projects is published. Further, predetermined keywords that at least indicate a PPP participation are statistically evaluated. The results outline that annual reports only give little and predominantly unspecific information on PPP which emphasizes the absence of corresponding reporting obligations and of a standardized PPP definition.     

国有控股上市公司负债破产威胁功效初探

以国家股和国有法人控股在50%以上的上市公司为研究对象,根据破产威胁模型和相机治理原理,运用健康指数对国有控股上市公司负债的破产威胁功效进行分析、验证,得出了目前在我国的国有控股上市公司中,负债无法发挥破产威胁功效的结论.     

Fact and Fiction in EU‐Governmental Economic Data

Abstract. To detect manipulations or fraud in accounting data, auditors have successfully used Benford's law as part of their fraud detection processes. Benford's law proposes a distribution for first digits of numbers in naturally occurring data. Government accounting and statistics are similar in nature to financial accounting. In the European Union (EU), there is pressure to comply with the Stability and Growth Pact criteria. Therefore, like firms, governments might try to make their economic situation seem better. In this paper, we use a Benford test to investigate the quality of macroeconomic data relevant to the deficit criteria reported to Eurostat by the EU member states. We find that the data reported by Greece shows the greatest deviation from Benford's law among all euro states.     

网络时代大学出版社保持学术传播主导地位研究

面对信息化和网络化的冲击，伴随着学术传播方式的变化，大学出版社在学术传播中的作用也在发生相应的改变，而且面临着挑战与机遇。为此，大学出版社应充分利用网络化优势，加强自身信息化建设；以网络为平台，提高自身的学术影响力；注意加强与数字图书馆的协调与合作，通过设计一个对彼此都有利的合作基础，共同促进学术的传播与发展。     

出口强度、资本密集度对中国出口企业自选择效应和学习效应的影响

现有研究关于出口企业自选择效应和学习效应的检验常常忽视企业的微观特征。本文通过对中国大样本微观面板数据进行统计分析和计量检验表明：国内出口企业存在生产率的静态优势,不存在“生产率悖论”。总体层面上,出口企业存在自选择效应,并且这种自选择效应对各种所有制企业和不同资本密集度企业均存在。在考虑国内外市场进入成本的情况下,高生产率的企业选择同时进入国内外两个市场,表现出自选择效应;而低生产率、高出口强度的企业选择进入国外市场,不存在自选择现象。,此外,短期内持续出口企业的学习效应为负,并且各种所有制企业的学习效应稳健为负,怛高资本密集度企业的出口学习负效应能快速扭转为正,出口强度低于50％的企业学习效应显著为正。