National Occupation and Employment Survey (ENOE), 2009
LFS-Q1, IPUMS Harmonized Subset
Mexico, 2009
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Reference ID
MEX_2009_LFS-Q1_v01_M_v7.5_A_IPUMS
Producer(s)
Instituto Nacional de Estadística, Geografía e Informática (INEGI), IPUMS
Created on
Sep 03, 2025
Last modified
Sep 03, 2025
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13
- Data files
- MEX2009_LFS-Q1-H-H.dat
- MEX2009_LFS-Q1-P-H.dat
Year started to work at current primary job (MX2009H_P3R_ANIO)
Data file: MEX2009_LFS-Q1-P-H.dat
Overview
Type:
Discrete
Decimal:
0
Start:
592
End:
595
Width:
4
Range:
-
Format:
Numeric
Questions and instructions
Literal question
<div class="title">Employment and Occupation Questionnaire (Extended)</div></p>
<p><span class="h1">III. Employment information</span></p>
<p>3r. In what year did [the respondent]:</p>
<div class="i1">(Ask according to the type of worker, record the year, and circle the option)<br /><br />Begin working for the first time for his/her current company, institution, or boss? [If the respondent is an <span class="em">employee</span>]<br />Begin his/her current business (or employment activity)? [If the respondent is an <span class="em">independent worker</span>]</div><div class="i2">Year _ _ _ _<br />Month_ _</div><div class="i1"><span class="em">Attention</span>: If year mentioned is current year or last year, ask for the month, record it, and provide the classification in all cases.</div><div class="i2">(If option 1, 2 or 9 is chosen, skip to 4)<br /><br />[] 1 During current year<br />[] 2 During last year<br />[] 3 Before last year<br />[] 9 Doesn't know</div>
<p><span class="h1">III. Employment information</span></p>
<p>3r. In what year did [the respondent]:</p>
<div class="i1">(Ask according to the type of worker, record the year, and circle the option)<br /><br />Begin working for the first time for his/her current company, institution, or boss? [If the respondent is an <span class="em">employee</span>]<br />Begin his/her current business (or employment activity)? [If the respondent is an <span class="em">independent worker</span>]</div><div class="i2">Year _ _ _ _<br />Month_ _</div><div class="i1"><span class="em">Attention</span>: If year mentioned is current year or last year, ask for the month, record it, and provide the classification in all cases.</div><div class="i2">(If option 1, 2 or 9 is chosen, skip to 4)<br /><br />[] 1 During current year<br />[] 2 During last year<br />[] 3 Before last year<br />[] 9 Doesn't know</div>
Categories
| Value | Category |
|---|---|
| 0000 | NIU (not in universe) |
| 1929 | 1929 |
| 1930 | 1930 |
| 1931 | 1931 |
| 1935 | 1935 |
| 1936 | 1936 |
| 1937 | 1937 |
| 1938 | 1938 |
| 1939 | 1939 |
| 1940 | 1940 |
| 1941 | 1941 |
| 1942 | 1942 |
| 1943 | 1943 |
| 1944 | 1944 |
| 1945 | 1945 |
| 1946 | 1946 |
| 1947 | 1947 |
| 1948 | 1948 |
| 1949 | 1949 |
| 1950 | 1950 |
| 1951 | 1951 |
| 1952 | 1952 |
| 1953 | 1953 |
| 1954 | 1954 |
| 1955 | 1955 |
| 1956 | 1956 |
| 1957 | 1957 |
| 1958 | 1958 |
| 1959 | 1959 |
| 1960 | 1960 |
| 1961 | 1961 |
| 1962 | 1962 |
| 1963 | 1963 |
| 1964 | 1964 |
| 1965 | 1965 |
| 1966 | 1966 |
| 1967 | 1967 |
| 1968 | 1968 |
| 1969 | 1969 |
| 1970 | 1970 |
| 1971 | 1971 |
| 1972 | 1972 |
| 1973 | 1973 |
| 1974 | 1974 |
| 1975 | 1975 |
| 1976 | 1976 |
| 1977 | 1977 |
| 1978 | 1978 |
| 1979 | 1979 |
| 1980 | 1980 |
| 1981 | 1981 |
| 1982 | 1982 |
| 1983 | 1983 |
| 1984 | 1984 |
| 1985 | 1985 |
| 1986 | 1986 |
| 1987 | 1987 |
| 1988 | 1988 |
| 1989 | 1989 |
| 1990 | 1990 |
| 1991 | 1991 |
| 1992 | 1992 |
| 1993 | 1993 |
| 1994 | 1994 |
| 1995 | 1995 |
| 1996 | 1996 |
| 1997 | 1997 |
| 1998 | 1998 |
| 1999 | 1999 |
| 2000 | 2000 |
| 2001 | 2001 |
| 2002 | 2002 |
| 2003 | 2003 |
| 2004 | 2004 |
| 2005 | 2005 |
| 2006 | 2006 |
| 2007 | 2007 |
| 2008 | 2008 |
| 2009 | 2009 |
| 9999 | Unknown |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Interviewer instructions
<span class="h2">7.5 Battery III. Work context</span>
<br />Starting with this battery of questions and up to six, the information you obtain will refer exclusively to the main job of the employed population, such that it could have been performed during the reference week or they could have been absent from it, but with return assured.</p>
<p>The purpose of this battery of questions is to identify the person's position or job, their title in the occupation, the size of the economic unit and how long they have been on the job, among others. In addition, based on title in the occupation, the purpose will be, in the case of:</p>
<div class="i1">- Independent workers, identify their level of autonomy and the line of their activity.<br />- Subordinate workers, identify whether they have a written contract and access to employment benefits, as well as the form in which they accessed their job.</div><span class="em">Question 3r</span>
<br />[Omitted figure]</p>
<p>This question is asked to employed persons to find out when or at what moment they began to work for the economic unit of their main job.</p>
<p>Instructions:</p>
<div class="i1">- Adapt the question based on whether the workers are independent or subordinate.<br />- How to record the information. In the first part of the question, enter the year in which the interviewee states they began working in their main job; and if it is the current year or the preceding year (as stated in the note of caution that appears on the questionnaire), ask for the month, and then classify the response based on the information recorded.<br />If the year in which they began to work is two or more years prior in relation to the reference period, circle option 3; in this case you do not have to ask or enter the month, just circle option 3, and continue with the next question.<br />- <span class="ital">Temporary workers</span>. In the case of subordinate workers, such as farm or construction hired laborer, who over the course of a week may work for different economic units, be sure the information you have obtained so far continues to refer to the main job.<br />- <span class="ital">Change of position in the occupation</span>. If a worker was working for the same economic unit with an occupational position different from that being performed currently in their main job (from independent worker to subordinate or vice versa), consider the moment the current occupational category was assumed as the point of reference to count the moment the person entered that economic unit.<br /><br />When a change of position or responsibility occurs within the same economic unit should not be considered as the moment an employed person became connected for the first time to the economic unit of their main job, but rather that should be when they went to work for the first time for that economic unit.</div><div class="i1">- <span class="ital">Status of independent workers.</span> In the case of this type of workers, the amount of time on the job can be measured from the moment they started in the trade, unless they have established a business as such, in which case it must be defined as starting the moment their business opened, or the moment they became responsible for it, if they were working for the same economic unit, but as subordinates.<br />[Omitted table]<br /><br />- <span class="ital">Information unknown.</span> If the informant declares they do not know the year and month, enter the code with nines where applicable.<br />- Sequence. If you circle option 1, 2, or 9, go to question 4; if you circle option 3, continue with question 3s.</div>
<br />Starting with this battery of questions and up to six, the information you obtain will refer exclusively to the main job of the employed population, such that it could have been performed during the reference week or they could have been absent from it, but with return assured.</p>
<p>The purpose of this battery of questions is to identify the person's position or job, their title in the occupation, the size of the economic unit and how long they have been on the job, among others. In addition, based on title in the occupation, the purpose will be, in the case of:</p>
<div class="i1">- Independent workers, identify their level of autonomy and the line of their activity.<br />- Subordinate workers, identify whether they have a written contract and access to employment benefits, as well as the form in which they accessed their job.</div><span class="em">Question 3r</span>
<br />[Omitted figure]</p>
<p>This question is asked to employed persons to find out when or at what moment they began to work for the economic unit of their main job.</p>
<p>Instructions:</p>
<div class="i1">- Adapt the question based on whether the workers are independent or subordinate.<br />- How to record the information. In the first part of the question, enter the year in which the interviewee states they began working in their main job; and if it is the current year or the preceding year (as stated in the note of caution that appears on the questionnaire), ask for the month, and then classify the response based on the information recorded.<br />If the year in which they began to work is two or more years prior in relation to the reference period, circle option 3; in this case you do not have to ask or enter the month, just circle option 3, and continue with the next question.<br />- <span class="ital">Temporary workers</span>. In the case of subordinate workers, such as farm or construction hired laborer, who over the course of a week may work for different economic units, be sure the information you have obtained so far continues to refer to the main job.<br />- <span class="ital">Change of position in the occupation</span>. If a worker was working for the same economic unit with an occupational position different from that being performed currently in their main job (from independent worker to subordinate or vice versa), consider the moment the current occupational category was assumed as the point of reference to count the moment the person entered that economic unit.<br /><br />When a change of position or responsibility occurs within the same economic unit should not be considered as the moment an employed person became connected for the first time to the economic unit of their main job, but rather that should be when they went to work for the first time for that economic unit.</div><div class="i1">- <span class="ital">Status of independent workers.</span> In the case of this type of workers, the amount of time on the job can be measured from the moment they started in the trade, unless they have established a business as such, in which case it must be defined as starting the moment their business opened, or the moment they became responsible for it, if they were working for the same economic unit, but as subordinates.<br />[Omitted table]<br /><br />- <span class="ital">Information unknown.</span> If the informant declares they do not know the year and month, enter the code with nines where applicable.<br />- Sequence. If you circle option 1, 2, or 9, go to question 4; if you circle option 3, continue with question 3s.</div>
Description
Definition
This variable indicates the year started to work at current primary job.
Universe
Mexico 2009 Q1 LFS: Present persons age 12+ who were employed
concept
Concept
| var_concept.title | Vocabulary |
|---|---|
| Work Variables -- PERSON | IPUMS |