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The Das model : a tool for the analysis of the dynamics of annual wages by Michel Gaspard and Diana Lécuyer. This text presents a model of the dynamics of annual wages. The model is built on the basis of the « Das » statistical data for the period 1 962 - 1 975 established by Inséé and supplying very detailed information. The major originality of this model consists —when making full use of the data collected— in analysing separately the growth of annuel wages for 23 groups of wage earners distinguished by socio-professional category, sex and sector of activity, then in piecing together the components of the general average wage to reconstruct its evolution, due account being taken of the changes in the weights of the different categories of the model in order to reflect the changes in the working population. The major mechanisms finally retained after econometric analysis are four in number indexation of wages on consumer prices for a small number of wage earners. influence of the «Smic» (salaire minimum interprofessionnel de croissance : minimum inter-industry growth wage) on the most numerous categories of workers. influence of the rise in labour productivity in two industrial sectors (intermediate goods and capital goods) and on the wages in these sectors. phenomena relating to the spread of wage rises and accounting for the propagation of the afore-mentioned «exogenous» effects from the most concentrated sectors to the other sectors and from bottom to top the so- cioprofessional hierarchy. No influence of the stress borne by labour markets on the growth of wages (Philipp's relation) could be brought out for the period reviewed.