Managerial accounting

In order for a company to achieve a sustainable competitive advantage, it must * :perform value chain activities (aha: 1) at the same quality level as competitors, at .the same cost at the same quality level as competitors, .but at a lower cost at a higher quality level than competitors, .at a higher cost V at a higher quality level than competitors, ,, .but at no greater cost at either the same quality level as competitors, but at a lower cost, or at a higher quality level than competitors, but at .no greater cost U