Todd R. Stinebrickner, "Serially Correlated Variables in Dynamic, Discrete Choice Models", Journal of Applied Econometrics, Vol. 15, No. 6, 2000, pp. 595-624. All data are in the ASCII file stdata.dat, which is in DOS format and zipped in the file stdata.zip. This file has 5400 lines, 12 for each of 450 individuals. The file stdata.dat contains data on 450 individuals from the National Longitudinal Study of the High School Class of 1972 (NLS-72). The data are constructed using all waves and the teacher supplement. The sample period covers the years 1975-1985. The sample includes individuals who reported being certified to teach in elementary schools, middle schools, or high schools. Individuals who reported being certified to teach but were missing key information (e.g., information that made constructing job histories impossible) were excluded from the sample. The ascii datafile is organized with 12 lines for each of the 450 people. The first line for each person includes data that do not vary with year. The second-twelfth lines include yearly data. The second line is data from 1975, the third line is data from 1976,..., the twelfth line contains data from 1985. The yearly data are only valid for the years in which the person was certified to teach. For example, if the person became certified to teach by the beginning of 1977 (see below for this variable), the yearly data for 1975 (second line overall) and the yearly data for 1976 (3rd line overall for the person) are not included in the data (or are not valid if included). First line for each person (data that are not time varying): variable format columns values id i5 1-5 ... Csex i1 6-7 1=male 2=female race86 i1 8-9 1=hisp. 2=as-pac 3=nat. american 4=black 5=white-other ses i1 10-11 1=low socio economic status 2=medium socio economic status 3=high socio economic status homesize i1 12-13 1=rural,farming 2=small city <50,000 3=medium sized city or suburb of medium sized 50,000-100,000 4=large city suburb of large 100,000-500,000 5=very large or suburb very large >500,000 SAT scores: vscore i3 14-17 Verbal SAT score mscore i3 18-21 Math SAT score NOTE: Both vscore and mscore are imputed for missing cases. Imputations used either ACT exam scores or other achievement test scores. area of bachelor degree: bacha i1 22-23 1=education 2=math,computer science,business 3=sciences 4=humanities 5=social sciences 6=other area of certification: certa i1 24-25 1=(elementary and middle) or (elementary only) 2=(high school and mid), (hs only) or (mid only) 3=el and hs or (el hs and mid) grades i1 26-27 1=mostly A (3.75-4.0) 2=about half A and Half B (3.25-3.74) 3=mostly B(2.75-3.24) 4=half b and half c (2.25-2.74) 5=mostly c (1.75-2.24) 6=half c and half d (1.25-1.74) 7=mostly D or below (<1.25) school setting of last teaching job: locat i1 28-29 1=rural or farming 2=small city <50,000 3=medium sized city or suburb of medium sized 50,000-100,000 4=large city suburb of large 100,000-500,000 5=very large or suburb very large >500,000 9=bad value or not answered minority composition of students in last teaching job: ft34sch i2 30-32 1=90-100% minority in school 2=60-90%minority in school 3=40-60 4=10=40 5=less than 10% 6=no minorities 94,98,99 reserved codes ability level of students in last teaching job: ft33 i2 33-35 1=primarily high ability students 2=primarily average ability 3=primarily low ability 4=primarily widely differing abilities 96,98,99 reserved codes student/teacher ratio in last teaching job: strat f7.2 36-42 Student/teacher ratio 999.00=bad value student/professional ratio in last teaching job: sprat f7.2 43-49 student/prof. ration 999.00=bad value number of students in school where teacher last taught: ft32 i4 50-54 number of students >9990 reserved codes type of school in which teacher last taught: ft29a i1 55-56 1=public 2=parochial 3=private >=6 reserved codes economic status of students in last school: ft35 i2 57-59 1=upper class 2=upper middle 3=lower middle 4=lower class 5=mixed economic classes >90 reserved whenf i2 60-62 Year became certified to teach Note: constructed from information about educational degrees etc. whenb i2 63-65 Year received bachelor degree Note: constructed from information about educational degrees obtained etc. nyr i2 66-68 number of years of data 75-85=11 ltch i2 69-71 number of index when last teaching job began. 1= 1975 ... 11=1985 0=never taught format of each yearly record: i i2 1,2 Index associated with year 1=1975, 2=1976... Work status: TEN(i) i1 3,4 1=new teaching job 2=old teaching 3=not working 4=new non-teaching 5=old non-teaching job Weekly wage: WAGE(i) i4 5-9 wage 5000=wage not available (missing or not requested) yearly marital status: WM(i) i1 10-11 1=married 2=not married yearly number of children: NC(i) i1 12-13 number of children current schooling status: ST(i) i1 14-15 1=f-t schooling 2=attending school part-time 3=not attending school. CUME(i) f5.2 16-20 cumulative number of education years before year i, starting from year after person finished bachelor's degree. Whenb is year after person finished bachelor's degree. CUMY(i) f5.2 21-25 cumulative number of years in teaching before year i, starting from year person is first certified to teach. whenf is when person is certified to teach.