The potential of a multi-mode data collection design to reduce non response bias. The case of a survey of employers

The aim of the paper is to compare two alternative survey designs in terms of resultant response rates, non response bias and cost. The first design is a simple postal survey with follow-up mailings; the second design is a two-phase multi-mode design, where the postal survey is followed at the second phase by a telephone survey of non-respondents. We present a case study based on a survey of employers. In this study we find evidence that the sample obtained using only postal methods is biased in important respects. Bias is not apparent in the demographic characteristics of the employees. But bias is observed in some of the employees’ employment characteristics and some of the characteristics of the firms in which they work. The multi mode design seems, overall, to have reduced or removed the bias of the postal sample. Only in marginal respects was some further bias introduced. We also compare costs of the two designs, to enable a comparison of cost-effectiveness at bias reduction.     

对国土资源调查项目经费预算编制与审查的思考

国土资源调查项目立项预算编制方法和审查方式的改变,合理匹配项目是预算编制与审查的核心任务,对项目预算中不合理经费进行调整是预算审查的重点,对项目立项技术方案和预算编制提出了新的要求,立项预算编制和审查应适应财政支出体制的变化,并注意各种预算表格内容的衔接。     

安徽省第一次全国经济普查资料的开发应用研究--合肥高新区主导产业发展现状研究

主导产业在产业结构中处于主体地位,发挥着引导和支撑作用.主导产业的发展状况关系到整个地区的经济发展.文章利用2004年合肥高新区第一次全国经济普查获得的资料,对高新区主导产业发展现状进行了描述,并对其在发展中存在的问题提出了对策建议.     

市场细分因素的调查设计——电视剧市场分析的例子

根据市场细分的重要因素地理位置、人口统计学特征以及社会文化三个方面进行了市场调查内容的设计,同时使用电视节目欣赏指数来衡量电视剧的欣赏偏好。调查的目的是了解电视剧欣赏偏好情况以及找出影响欣赏偏好的因素。     

Winners and losers from food industry policy: An application to Danish food industry firms

Policy impacts on food industry firms are investigated. A new approach is presented for the analysis of food industry policies that focuses on food industry firms. Data from a survey of Danish firms in 2003-2004 are used to define and construct tables of winners and losers from 30 regulatory areas. Two forms of statistical test are employed in a grid-search to identify association between regulatory areas, types of firms, and patterns of winning and losing. Results indicate that the type of firm, rather than the policy instrument, determines patterns of winning and losing. Upstream and downstream ownership of assets by food industry firms, and their trade orientation, are shown to be the most important variables. For several policy areas the pattern of winning and losing is found not to be associated with any specific firm types, which indicates that their impact is neutral across all types of firms studied. Firm size was found to be poorly associated with firms' capacity to win and lose from several policies involving high-investment compliance.     

线路测量中长度变形的分析

用GPS加RTK进行线路测量越来越广泛,而在对狭长、大跨度的线路进行测量时，长度变形受到的影响比较大，文章从不同投影面和投影带的长度变形入手，定量地分析了选择不同投影带和投影面对长度变形的影响，并提出了改进的方法。     

安徽省第一次全国经济普查资料的开发应用研究——合肥高新区主导产业发展现状研究

主导产业在产业结构中处于主体地位，发挥着引导和支撑作用。主导产业的发展状况关系到整个地区的经济发展。文章利用2004年合肥高新区第一次全国经济普查获得的资料，对高新区主导产业发展现状进行了描述，并对其在发展中存在的问题提出了对策建议。     

地质调查项目预算定额管理现状及发展前景

该文介绍了国外地质调查项目预算定额管理的现状 ,结合我国地勘行业的实际分析了地调项目预算管理中存在的主要问题 ,并就其未来的发展方向从人才培训、定额管理两个方面进行了探讨。     

改革和完善贸易统计制度方法的思考

中国的贸易统计工作,经过多年改革,基本适应了形势发展的要求。但是在某些方面急需一些新的思路和举措来改变目前相对被动和落后的局面。贸易统计制度和统计指标体系需要不断完善,贸易统计调查方法应力求规范和统一。     

浅论水利工程中的斜坡勘察

在山区修建大型水利工程,往往还受到地质条件的制约和影响,而斜坡又是山区地质的重要组成部分,因此对斜坡进行地质研究是非常有意义的。文中首先从斜坡地质勘察的重点入手,介绍了斜坡勘察方法与任务,接着从斜坡稳定性的定性分析与定性计算两方面对斜坡稳定性进行了分析评价,最后给出了斜坡处治的工程措施。