x     The association agreement between Mercosur and the European Union (EU) enters provisionally into force on Friday May 1, after more than a quarter-century of negotiations, in what constitutes one of the world's most ambitious trade deals and the largest reciprocal opening ever finalised by the South American bloc. The final signing took place on January 17 in Asunción and, although final ratification by the European Court of Justice and subsequent approval by the European Parliament remain