19The economic framework, mechanisms or methodologies to be applied by the AER for the purposes of item 18.

19 The economic framework, mechanisms or methodologies to be applied by the AER for the purposes of item 18. 20 The economic framework, mechanisms or methodologies to be applied or determined by the AER for the purposes of items 15 and 16 including (without limitation) the economic framework, mechanisms or methodologies to be applied or determined by the AER for the derivation of the revenue (whether maximum allowable revenue or otherwise) or prices to be applied by the AER in making a transmission determination. 21 The regulatory asset base, for the purposes of making a transmission determination, of assets forming part of a transmission system owned, controlled or operated by a regulated transmission system operator, and of proposed new assets to form part of a transmission system owned, controlled or operated by a regulated transmission system operator, that are, or are to be, used in the provision of services that are the subject of a transmission determination. 22 The determination by the AER, for the purpose of making a transmission determination with respect to services that are the subject of such a determination, of allowances for— (a) depreciation; and (b) operating costs of a regulated transmission system operator; and (c) if the regulated transmission system operator is a corporation or other body corporate— (i) the income tax payable by corporations; or (ii) amounts payable under a law of this jurisdiction or otherwise that are equivalent to income tax that would be payable by the operator if that operator were liable to pay income tax. 23 Incentives for regulated transmission system operators to make efficient operating and investment decisions including, where applicable, service performance incentive schemes.