Several years back, economists developed methods for appraising investment projects fi-. nanced from public budgets, one of which is the use of âsocial cost-benefit analysisâ: a. test that weighs the costs and benefits of a public project in terms of its contribution to. national (social) welfare.
Pella Windows has shown its customer service address detail for its customers that are shown below. Address detail : Pella Corporation - Customer Service Department, 102 Main Street, Pella, Iowa 50219, United States. customer service number : +1-877-473-5527, +1-866-809-9460.
for customer service, phone toll free 1-800-333-toll(8655) text telephone tdd/tty 1-800-772-7935. fax 718-390-9772