[phpisthebest]

For walmart it would be easy

1. Automation.. More Self Checkouts, more Kiosks, etc

2. Reduce local services. Many of them would become unprofitable anyway. This would be Deli, Custom Meat cutting, Fresh Meals, etc etc. This would be either outsourced or replaced with Regional Service servicing many stores to reduce head count

3. More Outsourcing. Manufacturers will stock their products on the shelfs not Walmart employees, Contractors will clean the stores not Walmart employee's, etc etc. Walmart will quickly become not the largest employer, and 100's of new small businesses that are likely under the threashold to be covered under these new laws will popup up to supply walmart with labor.

Some of this is already happening today as labor costs raise in the market, increase unionization will accelerate this.