This note warns about the careless computation of poverty indexes when the welfare of each household is measured by its net income, since this can be negative. As is illustrated in the case of Mexico, even if only a handful of households report negative incomes, the resulting poverty aggregates,...

This paper deals with the fiscal implications of a stabilization fund that allows for a stable consumption over time, in particular in the case of an oil producing and exporting country like México. We discuss the functioning of an oil stabilization fund based on international experience and...