The complexity of consumption can only be explained by identifying and analysing all the factors acting upon the carrier of demand, and in a given time and space, they have a higher or a lower importance, which makes it impossible to find a hierarchy. However, in societies characterized by a low standard of living, prices and incomes have a strong impact on consumer behaviour. Consequently, this paper approaches one of the most stringent issues, which interest specialists, governing bodies, mass-media and, last but not least, population. In the entire paper we analyse the population’s consumption, i.e. food, non-food products and services, by categories of households, from the economic, statistic and sociologic viewpoints. The paper ends with a brief presentation of conclusions and suggestions regarding the analysis and improvement of population’s consumption.