Optimal age of retirement and population growth

The purpose of this paper is to study intergenerational optimal resources sharing when the social planer can choose the retirement age in addition to consumptions and investment. We use the extension of the Diamond analysis by Hu [1979] that incorporates endogenous retirement age. We found that the optimal retirement age is an increasing function of the population growth rate if the elasticity of substitution of old agents' labor for young agents' labor is lower than one. In the millian case, when the size of a population does not matter, and when the elasticity of substitution of old agents' labor for young agents' labor is strictly higher than one, the optimal retirement age is a decreasing function of the population growth rate. In the benthamite case, the change in the optimal retirement age is indeterminate. Received: 19 February 1999/Accepted: 27 February 2001 All correspondence to Bertrand Crettez. We would like to thank Jean-Pierre Vidal for very helpful comments on an earlier draft. An anonymous referee provided insightful comments on a previous version of this paper. Responsible editor: Alessandro Cigno.     

地方高校大型仪器设备效益评价体系的构建

为了有效提升大型仪器设备使用效益,减少闲置资源,激发管理单位及管理员参与大型仪器开放共享的动能,从构建科学、合理、有效的仪器设备效益评价体系,推进大型仪器设备使用角度提出了具体思路。针对地方高校大型仪器设备效益评价体系现状,正视评价存在的针对性不强、真实性较低、引导性缺失三个方面的问题,从效益评价指标确定、权重确定、数据来源、评价结果分析及应用四个方面探讨了如何构建地方高校大型仪器设备分类评价体系。     

农民工双向迁移的制约因素与创新思路

近年来,我国农民工的迁移实践由“单向”渐趋“双向”,而传统的“推拉理论”运用于我国农民工的“双向迁移”并不能取得令人满意的效果;基于此,论题尝试构建符合我国农民工双向迁移的“推拉模型”。在此框架下,以河南许昌县为例,对阻碍农民工转移培训绩效提升、返乡创业环境改善、创业能力增强的制约因素进行了剖析,提出了营造农民工输出入地之间的对接机制、建立健全多元化转移培训投入机制等思路。     

满文历史文献探析

满文历史文献是以满族特有文字——满语文书写的本民族历史文献,它不但记录了满族发展的轨迹,成为我们研究满族的重要参考;同时也为中华民族增添了弥为珍贵的文化财富。本文以满文历史文献为研究对象,从其形成发展、分类及特征等方面展开论述,以期提高对这一重要民族历史文献认识与开发利用。     

龚自珍《己亥杂诗》分类探析

《己亥杂诗》是中国诗史上罕见的大型组诗,315首相对独立的七言绝句构成了一个有机的整体,贯穿于龚自珍1839年辞官南归和北上迎眷的全过程。在这一整体观的前提下,将这一组诗分为述怀、赠别、怀旧、爱情、山水、叙事等类别并作了评析,以期从诗歌创作的角度较深入地了解龚自珍这一时期的思想、志趣、心路历程以及诗歌审美特征等。     

基于内容分析法的电子商务模式分类研究

随着全球电子商务的蓬勃发展,商务模式作为描述企业如何创造价值的概念成为一个热门研究领域。然而,在电子商务模式分类这一基本问题上还未形成共识,人们依据不同分类标准建立了不同的电子商务模式分类框架。本研究对CNKI中文期刊全文数据库中篇名或摘要包含电子商务模式的文献中的商务模式分类标准及类别进行内容分析,结果表明出现频次较高的分类标准依次为交易主体、交互模式和价值链整合、价值链中的位置和盈利方式、市场主导力量和新旧经济5种,并且交互模式和价值链整合、新旧经济以及价值链中的位置和盈利方式这3种标准随时间推移所占比例逐渐上升,表明主流分类标准越来越关注于价值的创造方式和创造过程,这一趋势与电子商务模式定义所揭示的价值创造本质及其发展趋势是一致的。同时,分类体系的多样性也影响了人们对电子商务模式的理解和沟通,未来研究需要提出基于价值主张的更为通用和全面的分类体系来指导商务模式创新实践。     

布什伊拉克战争演讲的批评性分析

以批评语篇分析的理论为指导,从词汇选择、及物性、情态、人称代词等方面来分析前总统布什在伊拉克战争期间发表的演讲。试图通过该语篇的分析来揭示其演讲的真实目的,从而提高人们的批判性语言意识。     

社会转型期新底层公众上向流动诉求的困境与出路

鉴于社会转型期新底层公众具有迫切的上向流动诉求,但上向流动渠道亟待畅通。从宏观体制环境、中观社会资源配置、微观个人禀赋因素发挥等维度,系统分析了新底层公众上向流动诉求的困境障碍,建构了在保留户籍基础上的体制改革、在开发新底层公众自身创造力基础上的资源配置、在提升故土文化信心基础上的社会意识认同等畅通渠道的建议。     

Full-time, part-time employment and life satisfaction of the elderly

There is continued interest in employment and subjective well-being among the elderly because of the increasing proportion of elderly population in the labor force. This study investigates the association between part-time and full-time employment and life satisfaction of the elderly in Taiwan. We also examine how these associations may differ across socio-demographic groups. An ordinal treatment effect model is developed to accommodate the discrete feature of the employment decision and the potential endogeneity of these two outcomes. Using a unique sample of the elderly in Taiwan, in contrast to findings for the general population of the previous studies, we find that part-time employment is significant and positively associated with life satisfaction, while elderly with full-time employment have lower life satisfaction. These results are robust across socio-demographic groups.     

On the usefulness of government spending in the EU area

This paper investigates the effects of government spending on private consumption and investment in the European Union (EU). A certain consensus has been reached on the expansionary Keynesian effects of fiscal impulses on the economic activity. However, the existing empirical literature has concentrated on few countries, mostly outside the EU. We check the validity of this result for the EU area using annual data and a panel vector auto-regression approach, with particular attention being paid to robustness across alternative identification assumptions based on Cholesky orderings. Our results show that shocks to public spending positively affect private consumption and investment. According to our baseline estimate, a 1% increase in public current expenditure produces a 0.24% impact rise in private consumption, and a 0.41% impact rise in private investment. The effects are substantial, and die out slowly in the case of private consumption (the cumulative impact amounts to +0.56% after 3 years), but much faster in the case of private investment. A further disaggregation between wage and non-wage components reveals that public salaries have a relatively stronger stimulating role. This is not due to the different weights on GDP of the two components, which have comparable values in our sample.