Page 221 - Special Topic Session (STS) - Volume 3

STS541 Arturo B. E.
The size of the master sample is proposed independently for each
statistical cut, using the expression to estimate a proportion of 60.0%, 65.0%
and 70.0%, with a confidence level of 95.0%, relative error of 10.0% and a rate
of No response of 15.0 percent.
Having such statistical infrastructure allows INEGI to be permanently
prepared to respond immediately to the demand for basic statistical
information of a qualitative nature, with the aim of contributing to the
attention of the damages caused by natural disasters that occur in Mexico.

b) Conducting specific surveys.
The carrying out of specific surveys (mainly of a qualitative nature)
represents one of the main strategies that contributes to decision-making in
the presence of natural disasters and is closely linked to the design and
updating of the master sample.
As part of this strategy, it is expected that all studies will be captured
through the Computer Aided Telephone Interview Center (CATI), which has
been in operation since 2011.
This strategy was implemented for the first time as part of the attention of
the emergency caused by the earthquakes that occurred in our country in
September 2017.
INEGI carried out the design, collection, processing and dissemination of
the Survey of Seismic Impairments of September 2017, just 10 days after the
earthquake of September 19 of that year, and this is the timeliest survey in
companies that has been made in our country.
This survey offered qualitative information, generated based on the
opinions of businessmen, with the purpose of contributing to the decision
making in favor of the companies that were affected by the earthquakes that
occurred in Mexico on the 7th and 19th of September 2017.
The unit of observation was the establishment and measurement focused
on those that according to the Industrial Classification System of North
America (NAICS) 2013 are classified in the sectors of Manufacturing Industries,
Trade (both wholesale and retail minor) and private non-financial services.
The opinion of the businessmen was captured regarding: i) the effects on their
facilities and the services they provide, ii) the supports or aids received, iii) the
suspension of activities and the number of days of suspension, iv) the actions
carried out by the establishment to collaborate in the attention of the
emergency, and v) the expectation of the businessmen on the economic
activity for the last quarter of that year.
The sampling scheme was probabilistic. The sampling frame was supplied
by the master sample. It was integrated by little more than 2 million
establishments of all sizes, which were distributed in the eight states with the
greatest impact according to the civil protection authorities.

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