To wrokers sure, not everyone wants to be stuck in a union contract, which dictates many work rules in addition to pay. Some prefer to bargain individually for their wage and annual raises. Still, union workers continue to command a substantial wage premium in their fields, said Lance Compa, senior lecturer at Cornell’s ILR School, which focuses on labor relations. Bus drivers for Facebookwho voted to join a union in November, are among the latest to see a collective bargaining boost. Related: Facebook’s bus drivers workesr for raises after union vote. Union workers also usually enjoy better benefitsincluding health insurance and retirement accounts. Being a union member, however, doesn’t mean your pay will increase unio a faster rate. The wages of both groups have increased only 2. Also, bowing to corporate pressure, some unions are now negotiating tiered wage scales so that new employees are paid less than their experienced brethren. It’s hard for unions to esc...