A model for measuring the accuracy in spatial price statistics using scanner data
Author(s)
Date Issued
2022
Type
article
Volume
3
Start Page
7
End Page
42
Journal
Abstract
Given the crucial role of Spatial Price Indices (SPIs) for comparing standard of
living across a country, there is a need to assess their accuracy on a regular basis.
However, despite the importance attached to SPIs, with few exceptions reliability
measures are not computed and published both at an international and national
level. Focussing on SPIs, this paper aims at suggesting a measure for assessing SPIs
accuracy through the adoption of a new approach based on the Jackknife replication
technique. To illustrate the potentialities of the suggested approach an empirical
application is provided using the 2018 Italian National Institute of Statistics - Istat
scanner data on the ten provinces of Toscana for selected groups of products. Our
results demonstrate a large spatial heterogeneity between the SPIs of the Toscana
provinces and their standard errors
Subjects