Contains data from http://fmwww.bc.edu/ec-p/data/stockwatson/cps_ch3.dta
  obs:        11,130                          
 vars:             3                          27 Mar 2002 19:10
 size:       122,430 (99.8% of memory free)
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              storage  display     value
variable name   type   format      label      variable label
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a_sex           byte   %10.0g                 
year            int    %10.0g                 
ahe98           float  %9.0g                  
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Documentation for CPS_CH3 Data
Each month the Bureau of Labor Statistics in the U.S. Department of Labor conducts the 
ÒCurrent Population SurveyÓ (CPS), which provides data on labor force characteristics of 
the population, including the level of employment, unemployment, and earnings.  
Approximately 65,000 randomly selected U.S. households are surveyed each month.  
The sample is chosen by randomly selecting addresses from a database comprised of addresses 
from the most recent decennial census augmented with data on new housing units constructed after 
the last census.  The exact random sampling scheme is rather complicated (first small geographical 
areas are randomly selected, then housing units within these areas randomly selected); 
details can be found in the Handbook of Labor Statistics and is described on the Bureau of 
Labor Statistics website (www.bls.gov). The survey conducted each March is more detailed 
than in other months and asks questions about earnings during the previous year.  
The statistics in Table 3.1 were computed using the March surveys.  
The CPS earnings data are for full-time workers, defined to be somebody employed more 
than 35 hours per week for at least 48 weeks in the previous year.