Crisis' Origin's Causes. Contributions from the Fuzzy Logic in the Sustainability on the Socio-Economic Systems

The deep economic crisis where we are immersed, together with the recuperation perspectives, intensifies the efforts in the socioeconomic field to find new solutions to prevent the current involution process. One of the key factors to achieve this goal is based in rationalization and the outlay containment. But obviously, this purpose is not enough by itself, and will not make the real economy improve (the one which is perceived by all citizens, which becomes permeable in all social layers, and the one which allows a permanent welfare), and will never stay up longer than a short term. It is important to accompany these scarifying measures imposed to the citizenship with adequate politics, depending on the selected objectives. Just like that, we need to prioritize the expenses and inversions, which could generate wide multiplying effects in the economy.