The sample chosen of establishments in the construction sector se le envía a questionnaire identical every month, To the impossibility of bringing together around construction companies within the division of the 45 CNAE (construction), urges them to differentiate your answers depending on the destiny of their works. Thus, its activity may have been focused on the reference month to one or more of the following segments: houses, industrial constructions, other buildings and/or civil works.
The qualitative questions for all types of work focused on the follow-up to the production or work carried out, both in terms of level and future trends; limiting factors of production, with construction of response options:
The quantitative questions also differ by types of work and there are two issues:
It is possible to download:
Methodology of the ECC [339 KB] [PDF]
Standardized methodological report [PDF] [126 KB]
Questionnaire Construction [100 KB] [PDF]
Special mention in the methodological aspects of the survey frames deserves the next page located portalOECD:
Business Tendency and Consumer Surveys: International Development Work and Co-ordination
Its aim is to promote good practices for such surveys through the exchange of information and statistics among international agencies and national institutes responsible for their realization.
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