Changes in Sampling Units in Surveys of Businesses
نویسنده
چکیده
This paper discusses methods to handle changes in establishment-based sampling units that can have a large and possibly erroneous influence on estimates. Changes can be in classification, size, constituency of the sampling unit, or business operation. Methods used to correct the problem depend on when the change occurs and when knowledge of the additional information is gained, the magnitude of the change, the complexity of the solution and other factors. The problem is discussed in the context of the Monthly Retail Trade Survey.
منابع مشابه
Coordination of Pps Samples over Time
Probability proportional to size (PPS) sampling finds application in business surveys both for the first stage of a multi-stage design, and for direct sampling of businesses from a list frame. In both cases there is a need to update samples from time to time, while retaining as many units as possible from the old sample. In the second type of application there is also a need for negative coordi...
متن کاملNurses’ knowledge of evidence- based guidelines for preventing ventilator-associated pneumonia in intensive care units
Background and Purpose: Implementing the guidelines to prevent VAP has been shown to have a significant effect on reducing the incidence of VAP. Studies indicate that ICU staff have poor knowledge and low implementation rate of the standard preventive measures related to VAP. The present study aims to evaluate the knowledge of nurses in the intensive care unit in University hospitals of Sari. ...
متن کاملThe Effect of Nonresponse Primary Sampling Units on Estimating the Variance of Changes by Jackknife Method (Case Study: Labor Force Survey Data for 2009 and 2010)
Abstract. According to the importance of presenting change estimation of labor force survey indicators along with their variance, in this paper, the use of Jackknife method in estimating variance of changes has been investigated. Then, the effect of nonresponse primary sampling units on estimating the variance of changes has been studied by use of Jackknife method via intensive simulation stud...
متن کاملDesign and Analysis of Repeated Surveys
This lecture will review the major issues associated with the design and analysis of repeated surveys. The interaction between the design of a repeated survey and the methods used for estimation and analysis will be examined. The choice of rotation pattern will be considered in terms of the impact on the estimation of levels and changes. Composite and other forms of estimators will be reviewed ...
متن کاملImpact of Family Business Characteristics on Succession Planning: A Case Study in Tehran Industrial Towns
Successor planning process in family businesses is recognized as one of the most important phases of family business lifecycle. Family businesses play a vital role in developing regional and global economy and fuel the creation of new jobs, new business growth and increase in entrepreneurial activities. In this study, it was attempted to investigate the impact of family business characteristics...
متن کامل