Real wages adjustment with asymmetrics staggered contracts

We suggest in this paper to break off the hypothesis of symmetry between the staggered contracts of prices and wages which characterises Blanchard (1986) model. We introduce an asymmetry between the durations of price and wages contracts considering that wage contracts are twice much longer than the price contracts. Our findings put in quotation an unexpected shock in demand relative to dates of reviewing prices and wages. The initial impulse of real wages proved to be much stronger when the date of such a shock coincides with wage negociations rather than when the shock occurs at a time of a review date of prices. Since workers are impelled to negociate for longer lengths of time, they are induced to increase their playroll daims. On the other hand since firms have more often possibility of reacting then workers do, they can, therefore, accomodate the effect of an external shock.