Measurement of unemployment in employment inquiry by Robert SALAIS The inquiry on employment allows measuring the available population seeking work (PDRE) whose characteristics are broadly established according to the international definition of unemployed workers recommended by International Labour Office (ILO). This definition is based upon three fundamental criteria and consists in : — having no occupation; — seeking gainful work; — being free, i.e. being able to work immediately. The employment inquiry carries out in two phases the enumeration of unemployed persons : subsequent spontaneous statement upon direct personal interview by interviewer. Starting from the broadest set defined by the inquiry, the successive implementation of...