Mo. Rev. Stat. § 620.1300
A cost benefit analysis shall be prepared to evaluate the effectiveness of all tax credit programs, as defined by section 135.800, and all programs operated by the department of economic development for which the department approves tax credits, loans, loan guarantees, or grants. Each analysis shall be conducted by the state auditor, and shall include, but not be limited to, the costs for each program, the direct state and indirect state benefits and the direct local and indirect local benefits associated with each program, the safeguards to protect noneconomic influences in the award of programs administered by the department, and the likelihood of the economic activity taking place without the program. The result of each analysis shall be published and distributed, by January 1, 2001, and at least every four years thereafter, to the governor, the speaker of the house of representatives, the president pro tem of the senate, the chairman of the house budget committee, the chairman of the senate appropriations committee, the joint committee on tax policy, and the joint committee on economic development policy and planning.
§ 620.1300, RSMo