Lane and Riley are the only two residents in a neighborhood, and they share the same driveway. They would like to have the driveway paved. The value of the paved driveway is $1,500 to Lane and $900 to Riley. Regardless of who pays for the paving both people will benefit from it. If the cost of paving the driveway is $2,000, then it is ______ for the driveway to be paved because total economic surplus would ______.