کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
482827 | 1446221 | 2006 | 18 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Data aggregation and Simpson’s paradox gauged by index numbers Data aggregation and Simpson’s paradox gauged by index numbers](/preview/png/482827.png)
Simpson’s paradox is a phenomenon occurring in data aggregation in complex systems. It consists in the increase (decrease) of the rate in the data aggregate at the higher level with the simultaneous decrease (increase) of the rate in each subgroup of the lower levels of the hierarchy. Although the nature of this paradox is known, it is difficult to interpret it without gauging the reasons of its occurrence. To capture the causes of the paradox, we elaborated some measures of index analysis. We suggest to apply these measures for estimation of changes due to the partial rates and the structural effects. Using numerical examples from the marketing research field, we show how the elaborated gauges evaluate absolute and relative changes, helping to interpret the incidence cases.
Journal: European Journal of Operational Research - Volume 172, Issue 1, 1 July 2006, Pages 334–351