Executive summary -- Introduction -- I. Shaping the WEP, reshaping the ILO (1966- 1969) -- II. The ‘Prime Years’ of the WEP: The ILO offensive on development (1969-1976) -- III. The WEP after basic needs: Between consolidation and normalisation (1976- 1981) -- IV. Paradigm lost: The WEP in search of new alternatives (1982-1993) -- V. Conclusion -- Annex: Chronology of main events of the WEP.