affect rates. Giving deference to the Commission’s view about what is necessary for effective ratemaking in a competitive market, id. at 294, 830 P.2d at 815, we conclude that the Commission can permissibly require an Af fected Utility that chooses to transfer competitive assets to an affiliate to do so at a fair and reasonable price, as determined by the Commission. If such assets were transferred for an unfair price, the affiliate could gain an unfair advantage in the competitive market by being able to charge rates that are not needed to cover the cost of the assets. Thus, such a provision is aimed at controlling rates rather than controlling the Affected Utilities and is therefore permissible. Id. at 297, 830 P.2d at 818; cf. US West I, 197 Ariz. at 24, ¶ 31, 3 P.3d at 944 (<HOLDING>). ¶ 66 However, we fail to understand, and
holding that even when there is a conflict of evidence before the commission and the evidence was such that the commission could have reasonably reached a contrary decision the commissions decision was not arbitrary and capricious holding rule requiring companies to seek commission approval to discontinue or abandon competitive services implicates ratemaking because the decision can affect profit and loss which affects rates holding that the legislature granted exclusive authority over ratemaking to the public service commission holding that because gertrude sought damages for 1 the decline in the delps net worth based on the loss of their interests in the nuway companies 2 billys lost earning capacity 3 billys credit reputation and 4 mental anguish and she and her husband obtained the nuway companies during the marriage and managed them together the  economic loss attributable to the loss of their interests in those companies was an injury to jointlymanaged community assets holding that the commission exercises substantial discretion in selecting the appropriate ratemaking methodology and this is especially true where as here the issues involve complex factual determinations peculiarly within the expertise of the commission