The Plan of Ayutla (Ayutla Plan) was a political pronouncement made by liberal leaders against the dictatorship of Mexican President Antonio López de Santa Anna. It was proclaimed on March 1, 1854 in the city of Ayutla, State of Guerrero, by Florencio Villarreal, Ignacio Comonfort and Juan N. Álvarez. He received the support of Benito Juárez, Melchor Ocampo, Ponciano Arriaga, and other liberals exiled by Santa Anna, who had gone into exile in the United States.

National income is the monetary value of all goods and services produced in a country in a year or the totality of income accruable to all factors of production employed in producing goods and services in the year in the country such as wages, salaries, rents, interests and profits. It is equal to NNP - Indirect Business Taxes.