| CIGEXPSHARE it = θ0 + θ1 AGE(36–55) it + θ2 AGE(55+) it + θ3 FEMALE i + θ4 HIGH-INCOME it + θ5
HIGH-EDU it + θ6 EMPLOYED it + Σj θ7j TIER itj + Σk θ8k CITY itk + Σl θ9l WAVE il + vit |
(3) |
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