Interfirm costing technique Question options: is a structured approach to cost management in supply chains. Transmits the cost reduction pressures faced by end firms to their supplier network Attempts to capture the economic profit generated by a company by subtracting a charge for capital from net operating profit, EVA = NOPAT - (Capital employed Cost of Capital) Customers and suppliers share detailed cost information about their inhouse activities, pertinent to the supply of goods and services which links them. All of the above are correct only b and c are correct about interfirm costing technique