In this study, we produce a valid and consistent variable for socioeconomic status (SES) at the household level with census microdata from ten developing countries available from the Integrated Public Use Microdata Series—International (IPUMS-I), the world's largest census database. We use principal components analysis to compute a wealth index based on asset ownership, utilities, and dwelling characteristics. We validate the index by verifying socioeconomic gradients on school enrollment and educational attainment. Given that the availability of socioeconomic indicators varies considerably across samples of census microdata, we implement a stepwise elimination procedure on the wealth index to identify the conditions that produce an internally consistent index. Using the results of the stepwise methodology, we propose which indicators are most important in measuring household SES. The development of the asset index for such a large archive of international census microdata is a very useful public resource for researchers.

This paper examines the non-reversal of fortune thesis proposed by Acemoglu et al. (2002) in the light of the Colombian experience over the last 500 years. Using a total of fourteen national population censuses and the record of tributary Indians in 1559, it is found that the population density of Colombian regions presented a high degree of persistence through time. Thus, the evidence indicates that those places that were prosperous circa 1500 remain so today, and vice versa. These results indicate that the long-run influences of geography on regional economic disparities within a country are not negligible.