2. AGRICULTURE, LIVESTOCK FARMING, MINING AND FISHING KEY ASPECTS OF THE PRIMARY SECTOR - In Spain, the importance of the primary sector has declined since the mid-20 th century. - But its productivity capacity has increased due to: 1. Modernisation - The sector has become highly mechanised and industrial. - This causes the reduction i the amount of labour used. 2. Spain’s entry into the European Economic Community (EEC). - Since 1986, European policies have accelerated the transformation of he sector.