Given the crucial role of Spatial Price Indices (SPIs) for comparing standard ofliving 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 reliabilitymeasures are not computed and published both at an international and nationallevel. Focussing on SPIs, this paper aims at suggesting a measure for assessing SPIsaccuracy through the adoption of a new approach based on the Jackknife replicationtechnique. To illustrate the potentialities of the suggested approach an empiricalapplication is provided using the 2018 Italian National Institute of Statistics - Istatscanner data on the ten provinces of Toscana for selected groups of products. Ourresults demonstrate a large spatial heterogeneity between the SPIs of the Toscanaprovinces and their standard errors
A model for measuring the accuracy in spatial price statistics using scanner data
Federico, Crescenzi;
2022-01-01
Abstract
Given the crucial role of Spatial Price Indices (SPIs) for comparing standard ofliving 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 reliabilitymeasures are not computed and published both at an international and nationallevel. Focussing on SPIs, this paper aims at suggesting a measure for assessing SPIsaccuracy through the adoption of a new approach based on the Jackknife replicationtechnique. To illustrate the potentialities of the suggested approach an empiricalapplication is provided using the 2018 Italian National Institute of Statistics - Istatscanner data on the ten provinces of Toscana for selected groups of products. Ourresults demonstrate a large spatial heterogeneity between the SPIs of the Toscanaprovinces and their standard errorsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
