R Ra aú úl l EEn nr ri iq qu ue e M Mo ol li in na a S Sa al la az za ar r La desigualdad existe desde los primeros hombres, esta se debe medir y se debería de crear un consenso sobre la forma de medirla y de compararla entre los distintos países, estados y entidades de distinta índole. Al hablar de la igualdad, se debe de tomar en cuenta desde qué "ángulo" estamos viendo la situación, desde la perspectiva del utilitarismo o no. También influye el ámbito de estudio de las igualdades, por ejemplo, la igualdad en salud implica una serie de igualdades asociadas como son la igualdad de inclusión, de asistencia, de educación, de libertad, etc. Amartya Sen preguntó "igualdad ¿de qué?" pues en no pocas ocasiones al pedir la igualdad respecto a "A" se perjudica a otro tipo de igualdad respecto a "B".El Índice de Desarrollo Humano(IDH), es un índice compuesto del índice de salud, índice de educación y el índice de ingresos.Palabras clave: IDH (Indice de Desarrollo Humano), igualdad, equidad, inequidad, salud.ABSTRACT.-This paper is an analysis of the evolution of HDI as a social indicator. A discussion on the importance of placing the social agenda to the HDI is first performed. Subsequently arise the HDI elements. Last discussed indicators of HDI both globally and for Mexico.Inequality has existed since the first men, this should be measured and should build consensus on how to measure and compare across countries, states and entities of various kinds. Speaking of equality, it must be taken into account from what "angle" we are seeing the situation from the perspective of utilitarianism or not. Also influences the field of study of the similarities, for example, equality in health implies a series of equalities are associated as equal inclusion, support, education, freedom, etc. Amartya Sen asked "equality of what?" Because on many occasions to ask for equality with "A" harms other equality with "B".The Human Development Index (HDI) is a composite index of the health index, education index and the income index. INTRODUCCIÓNLa desigualdad perdura entre la sociedad desde que el ser humano vio la luz. Siempre han existido grupos vulnerables en la sociedad que, por voluntad propia o contra su voluntad, han sufrido las inclemencias de la pobreza y de la marginación.El gran problema es ponerse de acuerdo en qué tipo de estadísticas sociales aplicar para delimitar la gravedad del asunto y disponer de suficientes elementos para atacar este mal que infecta cada vez más a la sociedad y no permite que se dé el | 44 (2014.4) Nómadas. Revista Crítica de Ciencias Sociales y Jurídicas

Objetive: The objective of this paper is to analyze the equity on the financing and access to medication in Mexico, in a context of growth in the market of t generic drugs. It also shows the level of prices and costs of diabetes treatment. Materials and Methods:This study is based on the national survey about the income and expense of households from 1998 and 2010. The Heckman model was used. This type of model has two stages: the first estimates the probability that the household make an expense on medications, while the second stage uses an Engel Curve model to explain the budgetary allocation of drug spending. Results:The poorest households without social security have an expense in medication relatively higher than the rest of the population. The cost of diabetes treatment with drugs without patent is too high. According to the results if the drug spending of a household income increases by 100% it is reduced by 11.79% in 1998, while in 2010 it drops in 11.59%. The estimation of this demand equation according to the theory of the consumer indicates that the introduction of generic drugs has brought a wealth effect since 2010 households consume more medication, just as predicted. Conclusion:The benefits of access to medicines may not be available on an equitable way. The poor households may not have the opportunity to achieve good health when it is affected by a disease which requires expensive medications or has a lifetime treatment and a great part of the household income is destined to it which makes them become poorer; this has a negative impact on social justice.

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