Although it is to be expected that changes in per capita GDP and average income will tend to move together, as shown in the surveys, it is important to remember that these variables relate to different concepts. Also, there are methodological differences that can widen discrepancies, such as the type of income flows that are actually measured and geographic coverage (some surveys cover only urban areas), to name only the most important shortcomings. To accomplish this, the lower-income household group was analysed. A predominant pattern emerges across the episodes analysed: this group’s income declined more than that of the total group of households.