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.
When customers want to contact the customer service team, you can do so by phone, email, traditional mail, on the corporate blog or visiting the social media sites. The customer service department is available Monday through Friday 8:30am to 5pm EST. Customer service: 1-800-859-5339.