The Ramsey County Housing and Redevelopment Authority, established pursuant to Ramsey County Resolution No. 93-155, dated March 9, 1993, shall have the powers and duties of the Ramsey County Economic Development Authority under section 383A.151 and shall retain all the powers of a housing and redevelopment authority under sections 469.001 to 469.047. For purposes of applying chapter 469 to the county of Ramsey, the county has all the powers and duties of a city; the county board has all the powers and duties of a governing body; the chair of the county has all the powers and duties of a mayor; and, with respect to the exercise of the powers under section 469.008, the area of operation includes the area within the territorial boundaries of the county.