At the same time, APEC contains even more diversity than ASEAN. It will not be easy to evolve a style of co-operative decision-making which suits the customs and preferences of all participants and leads to a credible pace of reforms to dismantle Impediments to International economic transactions. If APEC is to be effective, those participants who feel comfortable with the comfortable with formal treaty-based models of economic co-operation. Those who are accustomed to an "Asian" style of co-operation, essentially one of minimum fuss and maximum consensus, will need to work hard to reassure the others that a voluntary process will. in practice, deliver results.