Job search patterns and individual transitions in the labor market: microeconometric applications to the CEREQ Telephone Panel (1989-93).

Summary The purpose of this thesis is to study the role of search patterns in job search. It is structured in two parts. The first part analyzes the modes as factors in the job search. It highlights, through international surveys, the existence of a plurality of insertion modes. This plurality has rarely been taken into account in the literature, particularly in research models that focus on two exclusive strategies for accessing employment: market research and job research. The econometric analysis of mode choice, based on data from the CEREQ telephone panel (1989-1993), also highlights the existence of an endogenous mode selection rule. The modes are in fact chosen by individuals according not only to their personal attributes but also to the existence of other choice alternatives on the market. The study of search modes thus leads us to conclude that the multiple modes of access to employment constitute so many inputs to the production of information that results from prospecting. In light of this result, the second part of the thesis proposes to evaluate the impact of prospecting modes on the efficiency of the job search. By taking into account the multiplicity of canvassing outputs (duration of access to the job, work contract obtained, job stability, salary. . . .), the econometric results, which are based on the results of the canvassing process, can be used to assess the impact of the canvassing process on the efficiency of job search. ), the econometric results, derived from the exploitation of all the waves of the telephone panel, underline the discriminating impact of the search methods. They show that the most efficient strategy is to combine the social network and market procedures. The analysis of unemployment-job transitions shows that the selection of modes during the search periods depends, in addition to individual attributes, on accumulated work experience. However, no learning effect in the search is revealed. The dynamic analysis also reveals two typical trajectories on the labor market resulting from the existence of a queue in which individuals are selected according to their level of degree and experience.