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To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.socscimed.2005.06.042 Byline: Sylvestre Gaudin (a), Abdo S. Yazbeck (b) Keywords: Equity; Gender; Immunization; India Abstract: Previously published evidence from the 1992-1993 Indian National Family and Health Survey (NFHS) on the state of childhood immunization showed the importance of analyzing immunization outcomes beyond national averages. Reported total system failure (no immunization for all) in some low performance areas suggested that improvements in immunization levels may come with a worsening of the distribution of immunization based on wealth. In this paper, using the second wave of the NFHS (1998-1999), we take a new snapshot of the situation and compare it to 1992-1993, focusing on heterogeneities between states, rural-urban differentials, gender differentials, and more specifically on wealth-related inequalities. To assess whether improvements in overall immunization rates (levels) were accompanied by distributional improvements, or conversely, whether inequalities were reduced at the expense of overall achievement, we use a recently developed methodology to calculate an inequality-adjusted achievement index that captures performance both in terms of efficiency (change in levels) and equity (distribution by wealth quintiles) for each of the 17 largest Indian states. Comparing 1992-1993 to 1998-1999 achievements using different degrees of 'inequality aversion' provides no evidence that distributional improvements occur at the expense of overall performance. Author Affiliation: (a) Department of Economics, Oberlin, OH 44074, USA (b) The World Bank, 1818H. Street NW, Washington, DC 20433, USA