; and (ii) detail officers or employees of the Commission to work on a temporary basis for an entity described in clause (i). (B) Reciprocity and reimbursement (i) Reciprocity not required Assistance described in subparagraph (A) need not be provided on a reciprocal basis. (ii) Reimbursement (I) In general The Commission may provide and accept assistance described in subparagraph (A) on a reimbursable or non-reimbursable basis, only in accordance with a written agreement between the Commission and the respective foreign governmental entity. (II) Form A reimbursement to or from the Commission may be made in cash or in kind. The Commission shall credit a reimbursement received from a foreign governmental entity to the appropriate Commission appropriation, fund, or account. (C) Standards of conduct An officer or employee detailed under subparagraph (A)(i) shall be subject to the provisions of law relating to ethics, conflicts of interest, or corruption, and to any other statute governing the standards of conduct for Commission employees that are applicable to the type of appointment. (D) Limitation An officer or employee detailed under subparagraph (A)(i) may not hold any management position at the Commission. . 106. Office of the Chief Economist (a) In general Section 2(a) of the Commodity Exchange Act, as amended by sections 104 and 105 of this Act, is amended by adding at the end the following: (20) Office of the chief economist (A) Establishment There is established in the Commission the Office of the Chief Economist. (B) Head The Office of the Chief Economist shall be headed by the Chief Economist. (C) Functions The Chief Economist shall serve as economic advisor to the Commission and perform functions such as economic analysis, regulatory cost-benefit analysis, and research. (D) Professional staff (i) In general The Commission shall appoint such other economists and any related positions as may be necessary for the Office of the Chief Economist— (I) in accordance with the statutes, rules, and regulations