Suppose that the research facility could use a different production method that involves recycling water. This would reduce the pollution in the river to levels safe for recreation, and the boat tour would no longer be affected. If the research facility uses the recycling method, then the research facility's economic profit is $2,100 per week, and the boat tour's economic profit is $1,900 per week. If the research facility does not use the recycling method, then the research facility's economic profit is $2,400 per week, and the boat tour's economic profit is $1,100 per week. These figures are summarized in the following table