A university does not have a centralized receiving function for departmental purchases of books, supplies, and equipment. Which of the following controls will most effectively prevent payment for goods not received, if performed prior to invoice payment? a. Vendor invoices should be approved by a departmental supervisor other than the employee ordering the goods.
b. Invoices over a specified amount should be approved by the vice president of finance.
c. Names and addresses on vendor invoices should be compared to a list of department-authorized vendors.
d. Vendor invoices shoul be matched with department purchase orders.

Special order carson manufacturing, inc., sells a single product for $36 per unit. at an operating level of 8,000 units, variable costs are $18 per unit and fixed costs $10 per unit. carson has been offered a price of $20 per unit on a special order of 2,000 units by big mart discount stores, which would use its own brand name on the item. if carson accepts the order, material cost will be $3 less per unit than for regular production. however, special stamping equipment costing $4,000 would be needed to process the order; the equipment would then be discarded. assuming that volume remains within the relevant range, prepare an analysis of differential revenue and costs to determine whether carson should accept the special order. use a negative sign with answer to only indicate an income loss from special order; otherwise do not use negative signs with your answers.