TY  - BOOK
AU  - Papke, LE
AU  - Wooldridge Jm
AU  - National Bureau Of Economic Research
TI  - Econometric Methods For Fractional Response Variables With An Application To 401(k) Plan Participation Rates
T2  - Technical Working Papers
U1  - NBER TWP147 
PY  - 1993///
CY  - Cambridge, MA
PB  - NBER
ER  -