English to Spanish Social Sciences Economics

Hola, hablando sobre cómo equilibrar las cuentas de las pensiones, me ha entrado una duda existencial respecto al sentido de la parte entre ***. ¿Cómo lo traduciríais? Me he hecho un nudo con el orden, creo.


[Equity would be enhanced were we to finance aging more progressively. One way to do this would be to introduce steeper progression in the contribution system. Another would be to index (positively) retirement age to lifetime income.] And a third would be to build ***a general revenue financed, first-tier basic pension guarantee***.