An explanation of the changes in the proportion of temporary workers in Spain

In this paper a theoretical model is developed to identify the main determinants of the proportion of temporary workers at firms. The outcomes show that the proportion of temporary workers has a counter-cyclical behaviour: it grows during the slump period up to 1995 and falls during the subsequent recovery. However, given the effect of the general economic cycle, firms that raise their sales or improve their market dynamism index tend to increase their proportion of temporary workers. This proportion also rises when the average labour cost decreases, firm size increases, and the knowledge capital stock diminishes.