Repeated cross section for 1988, 1998, 2006, 2012 
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File: elmps 2012 comptbl 88_12 v2.1.dta 
Important Variables: 
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round: Identifies round of survey (1988, 1998, 2006, 2012)
hhid: unique household identifier, begins with two-digit round number (88, 98, 06, 12)
indid: unique individual identifier, begins with two-digit round number (88, 98, 06, 12)
expan: expansion factor (must be used as an analytic or probability weight) 
NOTE: This file contains only the created, compatible variables across 1988-2012. However, not all variables are available in all years.
| Cases: | 137951 | 
| Variables: | 354 |