On the role of the utility function in the estimation of preference parameters

Modern economic theory summarizes the main characteristics of individual preferences through a definite set of parameters: risk aversion, prudence, and the elasticity of intertemporal substitution. Despite their importance, the results of the literature devoted to the parameters’ estimation are controversial. This paper highlights the neglected role that may have been played by the constraints that the quantitative definition of the parameters and the utility functions employed impose on the estimation. A number of simulation exercises are presented, which show that the same saving behaviour can be associated with quite different values of the parameters depending on the utility function adopted.     

Knowledge management through the development of knowledge repositories: towards work degradation

This paper questions the consequences of the use of electronic knowledge repositories for work and employment. Drawing on critical research suggesting that knowledge management associated with such tools presents similarities to scientific management principles, it proposes to examine the following key research question: how do employees experience the transformation of the employment relationship when a knowledge repository is introduced to the workplace? The inquiry is grounded in an exploratory qualitative case study of a knowledge management system designed to foster knowledge‐sharing in a Belgian public administration. The findings illustrate two complementary outcomes: this system resulted in employees experiencing deskilling and work degradation, and was met with resistance. Significantly, this paper considers work degradation as a reflexive phenomenon in the context studied, where knowledge‐sharing systems produced deskilling and resistance as part of a specific re‐regulation process.     

传统白族民居如何适应现代功能需求——以沙溪白族民居为个案

沙溪的传统白族民居保存较好,数量庞大,既有大理白族民居的特点又有沙溪的地方特征。民居建筑材料为土、木、石。沙溪地区太阳辐射剧烈,冬季严寒,为提升室内舒适度,需要一些现代建筑技术手段来解决这些问题。随着社会的发展,为了适应现代化的生产方式,民居的功能空间发生了改变,并且伴着旅游开发,商业也作为一个不可缺少的因素融入到了沙溪民居中。     

矿泉水瓶再生设计研究

由于500ml左右矿泉水瓶瓶口具有统一的螺纹规格,其次,瓶体的容量也具有接近统一的标准,这就为矿泉水瓶再生设计的开发提供了必要的前提。市场上关于矿泉水瓶的再生设计多利用矿泉水瓶作为盛水的容器,而没有继续探讨其盛放小型垃圾(瓜子壳,纸屑,铅笔屑等)的功能。本文以绿色设计中延长产品生命周期的理念为原则,以联想法、模仿法及组合法等产品设计方法为指导,推出一款全新的使用矿泉水瓶衍生功能的产品,并着重介绍在本设计进行的过程中得出的新的设计方法:系统化条件下的功能衍生法。通过这款设计来说明现有产品衍生出新的功能的可行性,并总结一定的设计经验与设计方法,为以后进行相关设计奠定理论和方法基础。     

利用气井历史生产数据计算动态储量新方法

气藏动态储量是指参与渗流的地下气体地质储量,计算动储量常采用物质平衡法,但是对于难以获得平均地层压力的致密气藏不适用。本文介绍了利用气井长时间生产数据计算动态储量的方法,并研究采用叠加时间函数(Super-t)分析变产量修正时间,使计算结果更加精确;同时应用该方法对苏东南区致密砂岩气藏部分气井进行单井动态储量计算,为该区动储量估算提供借鉴。     

Regular economies with ambiguity aversion

We consider a family of exchange economies with complete markets where consumers have multiprior preferences representing their ambiguity aversion. Under a linear independence assumption, we prove that regular economies are generic. Regular economies exhibit enjoyable properties: odd finite number of equilibrium prices, local constancy of this number, local differentiable selections of the equilibrium prices.Thus, even if ambiguity aversion is represented by non-differentiable multiprior preferences, economies retain generically the properties of the differentiable approach.     

An Analysis of Mood System of Narrative Rock Song Lyrics and Its Interpersonal Functions

This thesis takes narrative rock song lyrics as the target of texts analysis from the perspective of mood and its realization of interpersonal functions. Song lyrics texts have the quality of both oral and written text and can be regarded as oral text written for the purpose of singing. Among all kinds of songs, subject with rock is probably the most common genre of song lyrics. Therefore this study focuses on rock song lyrics, specifically narrative rock song lyrics.     

吉林省农产品进出口对农业经济增长的效应———基于出口扩展型生产函数的实证研究

吉林省是一个农业大省,农产品进出口在整个对外贸易中占有举足轻重的地位,进出口贸易与经济增长之间的相互关系历来也是学术研究的重点。文章首先分析吉林省农产品贸易的发展状况与特点,研究了吉林省农产品贸易对农业经济的贡献率与拉动率;然后以柯布道格拉斯生产函数为基础,构建出口扩展型生产函数模型,对吉林省农产品进出口与农业经济增长,农业劳动投入、资本投入与农业经济增长的关系进行了实证分析,结果表明吉林省农产品进出口、农业固定资本投入对农业经济增长均具有正向的促进作用,农业就业人数的变化对农业经济增长的作用不显著。其中吉林省农产品出口额每增加1%,会促进农业地区生产总值增加0.198%,进口每增加1%,促进农业经济增长0.205%,农产品进出口总额每增加1%,农业地区生产总值增加0.227%。因此,吉林省要努力发展外向型农业,提高优势农产品在国际市场上的份额;同时增加农业资本投入,优化投资结构。     

The U.S. health care expenditure: evidence from 2001 to 2009

This study utilizes state-level data from 2001 to 2009 to estimate the impact of the 2007 financial crisis upon health care expenditures. Higher death rates are consistently found to have a positive and statistically significant impact on health expenditures. While mental health and COPD are not generally found to impact expenditures, increases in the percentage of the population diagnosed with cholesterol and obesity tend to increase health expenditures. Increases in health expenditures slowed considerably after the financial crisis. Even though recessions (high unemployment rates) are generally found to have a positive impact on health expenditures, the post-financial crisis time period is estimated to have much lower health expenditures than in other time periods. Our results can be used to give insight into the conditions under which the slower rate of increase in health expenditures can be expected to increase. More research will be needed to be able to more completely explore not only the reasons for these changes in health expenditures but also whether they are likely to continue into the future.     

农民对宅基地权利认知及影响因素研究*——以河北省新乐市为例

［目的］通过对河北省新乐市农民在宅基地权力认知及影响因素方面的分析，探究我国农村宅基地制度并提出相关建议。［方法］文章受制度功能可信度理论启发，以河北省新乐市14个行政村为调研对象，探究农民对宅基地相关权利认知情况，同时采用Spearman相关性分析研究影响农民宅基地认知的因素。［结果］调研地自发宅基地流转市场已形成，宅基地制度功能处于社会保障功能向财产功能转变的过渡阶段； 农民对宅基地所有权认知不明晰，但并不影响宅基地市场建立； 在宅基地流转中，农民更关注相互之间信任、村委会保留的记录、流转中形成的“事实产权”； 农民性别、年龄、受教育水平和家庭人口数是影响权利认知的主要因素。［结论］依据制度功能可信度理论充分考虑宅基地制度在现阶段的功能变化，因地制宜； 政府应关注农民的宅基地使用权问题，使其真正成为农民的财产； 应对农村宅基地流转中形成的事实产权逐渐正式化； 应制定年轻人就业帮扶和年长者社会保障等相关政策，避免宅基地流转影响农村社会稳定性。