5bbe58c7_nd_Spending_Limits_the_Answer___Limit_is
[State] Missouri [Provisions for a Waiver] Declaration of an emergency by governor and 2/3 vote of the legislature. [Limit is] 
Shall not exceed FY1980-81 state revenue as a share of 1979 state personal income in the prior calendar year or average state personal income over the previous 3 calendar years.
Taming Leviathan: Are Tax and Spending Limits the Answer?
Limit is