The Treasurer is authorized to borrow moneys from the Tax-Exempt Proceeds Fund to fund temporarily the costs of capital projects of the state for which bonds have been authorized to be issued by the State Bond Commission. Such borrowings shall be evidenced by the issuance of temporary obligations of the state payable to the Tax-Exempt Proceeds Fund. The state’s obligations shall be issued on such terms and conditions as shall be determined and established by the Treasurer and shall bear such rate of interest as the Treasurer shall determine by reference to such open market indices for obligations having similar terms and characteristics nature as the Treasurer shall determine relevant to arrive at a tax-exempt rate of interest on the obligations of the state issued and sold to the Tax-Exempt Proceeds Fund.