Alcune considerazioni sulla qualità degli indici dei valori medi unitari del commercio estero

In 2008 a new series of Unit Value Indexes was officially released; after few months the series of Production Price Indexes on non-domestic markets became available for the first time. The new sets of indicators were favourably welcomed by economists and researchers but they also gave a boost to the well-known debate on the adequateness of the official measurement for the analysis of competitiveness and internationalisation. The aim of this paper is both to test the robustness of export UVI to different coverage option and to perform a sensitivity analysis with regard to imputation techniques; moreover a measure of relative accuracy of monthly estimates will be given with regard to year 2005-2009.