RDP 2018-08: Econometric Perspectives on Economic Measurement Equation (A3)

plim V→∞ δ ^ WLS = ( E[ x tv w tv x tv ′ ] ) −1 E[ x tv w tv ln( p tv ) ] ⇒ plim V→∞ δ ^ WLS −δ= ( E[ x tv w tv x tv ′ ] ) −1 E[ x tv w tv ε tv ]