This paper brings together the modern research on employer power and employee power by empirically examining the effects of unionization on worker earnings, employment, and inequality across differently concentrated markets. Exploiting national tax reforms to union membership dues as exogenous...

It is well documented that displaced workers suffer severe earnings losses, but not why this is so. One reason may be that workers are unable or unwilling to move to regions with better employment opportunities. We study this and find that job displacement increases regional mobility but the...