When the tannery uses the recycling method, the resort earns $2,900−$1,900=$1,000 more per week than it does with no recycling. therefore, the resort should be willing to pay up to $1,000 per week for the tannery to recycle water. however, the recycling method decreases the tannery's economic profit by $2,700−$2,000=$700 per week. therefore, the tannery should be willing to use the recycling method if it is compensated with at least $700 per week.