Innovations in the methodological design of the recurring INAPP Plus sample survey

The PLUS (Participation, Labor, Unemployment, Survey) is a recurring national sample survey conducted by INAPP on a sample of 45,000 individuals aged 18 to 74 years. This paper aims to analyse the methodological innovations introduced in the 2024 version of the survey (the latest), highlighting the reasons behind these changes, aiming at making the estimates more reliable and addressing the need for transparency and scientific rigor. The innovations concern various aspects of the survey. First of all, the information about the subjective working condition coming from Istat LFS has been considered in order to redefine the key aggregates and the sample strategy. Secondly the final weights calibration has been changed, inserting between the constraints even the occupation (1° digit). Furthermore, has been improved the control and the correction processes for most of the relevant variables.