; (ii) market liquidity in the securities markets; (iii) small businesses; (iv) competition in the marketplace; (v) investor access; and (vi) the United States’ economic competitiveness. (4) Post-adoption impact assessment (A) In general Whenever the Commission issues a final regulation that is a major rule (as defined under section 804 of title 5, United States Code), it shall state, in the regulation, the following: (i) The purposes and intended consequences of the regulation. (ii) Appropriate post-implementation quantitative and qualitative metrics to measure the economic impact of the regulation and to measure the extent to which the regulation has accomplished the stated purposes. (iii) The assessment plan that will be used, consistent with the requirements of subparagraph (B) and under the supervision of the Chief Economist, to assess whether the regulation has achieved the stated purposes. (iv) Any unintended or negative consequences that the Commission foresees may result from the regulation. (B) Requirements of assessment plan and report (i) Requirements of plan For each regulation described under subparagraph (A), the Chief Economist shall establish an assessment plan, which shall— (I) consider the costs, benefits, and intended and unintended consequences of the regulation; (II) specify the data to be collected, the methods for collection and analysis of the data, and a date for completion of the assessment