classification, re-codified to obtain harmonized data for the Main Industrial Groups and total manufacturing. Size weights were used … weights, based on a four-stage method in which, firstly, the balance Ba,j for question a, firm j, is aggregated in each strata …, using the j-firm employees as weights; in the following stages, the result for each strata is progressively aggregated to …

the Italian economy. Second, weights used in the aggregation have now been updated to the year 1999. Third, the weighting … scheme is now based on a coherent system of firm-size weights, based on a four-stage method in which the firms' employees are … used as weights to aggregate the firms' results for the balance of a question in each strata; then results for each strata …

classification, re-codified to obtain harmonized data for the Main Industrial Groups and total manufacturing. Size weights were used … weights, based on a four-stage method in which, firstly, the balance Ba,j for question a, firm j, is aggregated in each strata …, using the j-firm employees as weights; in the following stages, the result for each strata is progressively aggregated to …