-7Substantial and self-sustained increase of per capita national product; (b) Equitable distribution of national income; (c) Adequate and equitable systems of taxation; (d) Modernization of rural life and reforms leading to equitable and efficient land-tenure systems, increased agricultural productivity, expanded use of land, diversification of production and improved processing and marketing systems for agricultural products; and the strengthening and expansion of the means to attain these ends; (e) Accelerated and diversified industrialization, especially of capital and intermediate goods; (f) Stability of domestic price levels, compatible with sustained economic development and the attainment of social justice; (g) Fair wages, employment opportunities, and acceptable working conditions for all; (h) Rapid eradication of illiteracy and expansion of educational opportunities for all; (i) Protection of man's potential through the extension and application of modern medical science; (j) Proper nutrition, especially through the acceleration of national efforts to increase the production and availability of food; (k) Adequate housing for all sectors of the population; (l) Urban conditions that offer the opportunity for a healthful, productive, and full life; (m) Promotion of private initiative and investment in harmony with action in the public sector; and (n) Expansion and diversification of exports. Observations of Mexico11 III-3. We have serious doubts as to whether the rights established in article 25 of the preliminary draft should be included in this final version. First, this statement could be repetitive, because it already appears in article 51 of the Protocol on amendments to the OAS Charter. Second, contrary to all the other rights referred to in the draft – which are rights that the individual enjoys as a person or as a member of a specific social group – it would be difficult at any given moment to establish precisely who would be the person or persons that would be directly affected if the rights contained in the said article 25 were to be violated. The same could be said as regard the degree of difficulty implicit in determining who would be, when applicable, the authority responsible for that violation. Observations of Guatemala12 III) In the case of the economic, social and cultural rights Article 24. In order to protect and promote respect for the economic, social and cultural rights proclaimed in this Convention, the American Commission on Human Rights, in addition to using other measures admitted by international law in force in the Americas, shall have competence to: a) Obtain reports from the States Parties on the measures they have adopted and the progress made in order to ensure respect for such rights; b) Undertake research and prepare reports on those rights, separately, or in cooperation with the governments concerned; c) Adopt recommendations of a general or specific nature for one or several States; d) Obtain from the General Assembly or other organs of the Organization of American States the necessary cooperation and the adoption of pertinent measures; e) Hold technical and regional meetings; e) Encourage the signature of international conventions and agreements in this area; f) Sign agreements with national and international technical entities. Article 25. The States Parties undertake to submit periodic reports to the Commission on the measures taken in order to ensure respect for economic, social and cultural rights. The frequency of these reports shall be determined by the Commission. They also undertake to 11 Proceedings of the Inter-American Specialized Conference on Human Rights, November 7 to 22, 1969, OEA/Ser.K/XVI/1.2, p. 101. 12 Proceedings of the Inter-American Specialized Conference on Human Rights, November 7 to 22, 1969, OEA/Ser.K/XVI/1.2, pp. 115 and 116.