Unions and Bargaining Over Pay: Two-Tier Wage Systems, Explained

Thousands of John Deere workers have been on strike for more than a month. Nearly 1,500 Kellogg’s workers likely will celebrate Thanksgiving on the picket line. More than 30,000 Kaiser Permanente workers narrowly avoided a strike this week through an 11th-hour deal with management.

The common thread? Tiered wage proposals that help companies cut costs but that unions say cheat new workers out of pay and retirement benefits.

At John Deere and Kaiser, organized labor prevailed in stripping tiered wage systems from the proposals during collective bargaining sessions—a big victory, but one that required each union to flex the ...