“…To date, most theoretical models on trends and variation in employment and unemployment have confined themselves to establishing a dichotomy between the employed and the unemployed. In this case, inactivity is added for the simple reason that the behaviour of the inactive population in relation to economic cycles does not correspond to that of the unemployed population (Tripier, 2003). Merz (1995), one of the pioneers in the use of the category of inactivity, brings the inactive into focus by defining the variable of "search effort", such that the lower the level of effort, the higher the proportion of inactive people.…”