The Reservation Wage Unemployment Duration Nexus
研究保留工资与失业持续期之间的内生性问题，采用控制函数方法区分已持续时间和总失业时间的影响，发现仅用已持续时间会混淆两种相反效应，加入总失业时间后能揭示失业对保留工资的负向影响。
Abstract A thorny problem in identifying the determinants of reservation wages and particularly the role of continued joblessness in their evolution is the simultaneity issue. We deploy a control function approach to the problem that involves conditioning elapsed duration on completed unemployment duration in the reservation wage equation. Our analysis confirms that the use of elapsed duration alone compounds two separate and opposing influences. Only with the inclusion of completed duration is the negative effect of continued joblessness on reservation wages apparent.