The article argues the European decision-making process throughout mapping the co-decision system adopted by the institutions of Europe Union. In the first part there is an explanation about how the European decision-making system works, highlighting institutions that define the rules of the game and the decision-making's practice; in the second part there are data about the applicability of co-decision between 1999 and 2006, observing core themes and their frequency in each part of decision process.
Europe Union; Decision-making process; Institutions; Democracy