A local council is looking to reduce the consumption of single-use plastic bottles in its main administrative offices. The following two behavioral modification proposals have been suggested:

• Proposal A (Feedback-based Nudging): Installing digital counters on all water-refilling stations that display the real-time cumulative number of plastic bottles saved by the workforce.
• Proposal B (Financial Incentives/Disincentives): Introducing a £0.25 charge on disposable plastic cups at hot beverage stations while subsidizing the purchase of reusable steel flasks at the staff reception.