Building the Knowledge Stock: Lags,Depreciation, and Uncertainty in R&D Investment and Link with Productivity Growth

The search for an appropriate methodology to investigate the relation between R&D investment, knowledge stock and productivity growth is the main purpose of the paper. In analogy with physical assets, we present a model of knowledge capital formation which allows the calculation of the relevant user cost, as well. The proposed model accumulates R&D investment based on a stochastic gestation lag and a geometric depreciation of the stock. The basic parameters underlying the lag structure differ according to the types of research expenditure. The approach is applied to public R&D investment in Italian agriculture; the results provide interesting information about the economic structure of public research effort in Italian agriculture and plausible estimates of its internal rate of return.     

行为决策理论及决策行为实证研究方法探讨

作者对行为决策理论发展的历程及各阶段中决策行为的实证研究方法进行了梳理,发现决策行为的实证研究方法在很大程度上决定了行为决策理论发展的进程。在对决策行为一般实证研究方法及其特点进行分析之后,作者认为观察法较适用于决策行为的初步探索性研究;调查法则较适用于一般决策行为的总体状况和特征的研究;如果理论假说源于决策者某些特定的、深层次的主观动机,假设的证实或者证伪又需要大量的检验,实验法的优势比较明显。为了取得对本研究的实证效果,这里对如何将实验法应用于中国投资者决策行为研究做了一次实证性尝试,以供学术争鸣。     

五代书院考略

五代时期民间所办儒学读书处多为家族所有的私塾,个别私塾召收异姓学生共同念书,从而成为义塾,但其异姓生员有限.宋初四大书院的兴起,与宋代扩大科举考试有关.唐代文献中的"书院",不过是书房而已.     

高校学生军训模式的探索与研究

对21世纪初高等学校学生军训模式的研究十分必要。研究高等学校学生军训模式的思路、目标及要解 决的主要问题,对于新模式的确立和实际应用具有重要的意义。     

上海市工业"三废"的环境库兹涅茨曲线研究

采用1982-2005年上海市"三废"数据进行了数量经济模型分析,结果表明,上海市人均工业废气和人均工业固废呈现出倒U型曲线,但是人均废水呈现U型曲线.上海市人均工业废气和人均工业固废已经超过了库兹涅茨的转折点,但是人均工业废水还未超过环境库兹涅茨的转折点.     

学校职业指导的现状与展望

职业指导是现代学校教育的一个重要组成部分。特别是当前我国正处在由计划经济向市场经济转型的关键时期,就业结构和就业方式发生了巨大的变化,大中专学校和职业技术院校毕业生面临着巨大的就业压力。这无疑对学校职业指导工作产生了更紧迫的要求,提出了更严峻的挑战。本文分别从政策法规和教学研究方面对我国学校职业指导的现状和未来发展进行了探析。     

上市公司自愿性披露信息影响因素研究——基于沪、深上市公司的实证检验

本文在文献综述和理论研究的基础上,运用多元回归建立模型,对上市公司自愿性披露信息影响因子进行了实证分析。结果发现,上市公司自愿性披露信息与盈利能力、发行股票类型、会计师事务所规模、公司规模和资产负债率等因素成显著正相关,而与股权集中度及行业类型没有显著相关关系,并对结论进行了相关分析。     

Comparing the impact of management support on police officers’ perceptions of discretionary power and engagement: Australia,USA and Malta

Abstract

This paper uses Social Exchange Theory as a lens for comparing the impact of management support upon police perceptions of discretionary power and employee engagement, across three countries. A survey-based, self-report process collected data from 193 police officers in Australia, 588 from the USA, and 249 from Malta. Structural equation modelling was used to analyse the data. The findings suggest a significantly different management support context across the three countries, as well as significantly different perceptions of discretionary power. Across the three countries, police perceived relatively poor satisfaction with organizational management support and only some engagement levels. However, USA police perceived significantly more discretionary power than the other country samples. These findings provide greater clarity about the link between management support, discretionary power and engagement for the police officers. Since employee engagement likely affects policing outcomes, the findings suggest that poor management support of police officers could negatively affect the provided service. Potential strategies to enhance police engagement include (a) training police managers about how to manage so as to promote greater engagement, and (b) modifying police managers’ performance indicators in line with achieving better police engagement.     

3自由度并联机器人的研究现状和应用前景

3自由度并联机器人具有结构相对简单、高刚度、低惯性力、大载荷和高速能力的特点,在工业生产及其他领域有着广阔的应用前景,引起了越来越多的学者的广泛兴趣。     

上市公司股权集中度影响因素实证分析

本文以上市公司数据为样本,采用主成分法、逐步回归、方差分析等多种分析方法对我国上市公司股权集中度影响因素进行了实证分析。结果表明,上市公司股权集中度的主要影响因素为持股主体、行业分布和规模,在此基础上还对我国上市公司的治理提出了建议。