Economic Impact on Businesses Creates a positive economic impact for local businesses: Supply-side -- 1 cent back to the retailer cuts costs of free plastic bags by 50%; free paper bags by 20% Supply-side -- 1 cent back to the retailer cuts costs of free plastic bags by 50%; free paper bags by 20% Demand-side -- As shoppers bring more reusable bags or decline extra bags, costs of demand will decrease.