The survey is carried out between January and April 2015 according to two different methods:
- the first, for enterprises with up to 250 employees, is based on telephone interviews (following the CATI - Computer Assisted Telephone Interview - methodology), in order to minimise the possibility of errors. It covers a sample of around 95 000 enterprises, previously selected in accordance with the statistical requirements of the sample design.
- the second, for enterprises with more than 250 employees, is based on direct interviews or filling-in of the questionnaire (aided by the statistical offices of the Chambers of Commerce). This method is used to interview the entire population of enterprises of this size operating in Italy.
The Excelsior Information System for enterprises with more than 50 employees surveys the whole universe, while for those with up to 50 employees a sample taking into account the territory, economic activity and enterprise size is designed.
The questionnaire proposed to the enterprises aims at collecting a wide range of information and is organised into different sections. The main data collected refer to:
- enterprises stock of employees as at the end of the previous year and expected changes (in-flows and out-flows) during the year of reference. The information collected also covers the expected recruitment of seasonal workers;
- characteristics of the job profiles the enterprise expects to employ during the year (including territorial breakdown for multi-localised enterprises with over 100 employees interviewed with the CATI method) and, for those enterprises that do not intend to recruit employees, reasons for this behaviour;
- staff engaged under atypical contracts (not employees);
- the training activity provided by the enterprise during the previous year. This information is available for the firm as a whole and disaggregated by occupation (managers, clerks and workers) and gender. The survey also provides information on the type of training activity -internal and external courses, on the job, self-learning and, for a subset of firms, the average duration of training -average number of days of training per trained employee - and the cost of training activities.
The response rates are the following:
- For enterprises with less than 50 employees, the response rate is 100% (if an enterprise in the sample does not respond, it is replaced by another one).
- For enterprises having 50 and 99 employees, the response rate is about 50%, data for non-respondent enterprises are estimated when the sample data are expanded to the entire population.
- For enterprises with 100 or more employees the response rate is around 60%, data for non respondent enterprises are estimated for each enterprise, according the enterprises historical data.