TASK DEFINITION: In this task, you are given a sentence in English and your task is to translate it into Spanish. In translation, keep the numbers and capitalization (capitalize only the first word of each sentence and name).
PROBLEM: Modern economic science has provided an exceptional instrument with the Tobin proposal and others, which we will be able to use if we have the political will to make a start.

SOLUTION: La ciencia económica moderna nos ha dado un instrumento excepcional con la propuesta Tobin y con otras propuestas que podremos utilizar si tenemos la voluntad política de comenzar.

PROBLEM: If this is not to be a mere media event, it will need to be carefully prepared by a joint committee, the composition of which the Portuguese Presidency has already proposed.

SOLUTION: 

PROBLEM: The European Commission has approved a proposal for a directive on special arrangements in buses, coaches and other vehicles, so that people with special needs with mobility problems and people using wheelchairs have access to them.

SOLUTION:
La Comisión Europea ha aprobado una propuesta de directiva relativa a ciertas disposiciones especiales para autobuses, autocares y otros, al objeto de que en estos vehículos se facilite el acceso a personas con problemas de movilidad, a personas que utilizan silla de ruedas.