Economically, for example, the Bertelsmann Transformation Index shows that the ten ASEAN countries have experienced widely different degrees of economic transformation. Singapore ranks fifth out of 129 countries, but its closest ranked fellow ASEAN member is Malaysia, which places 21st. Meanwhile, Myanmar is 122nd, and Cambodia 96th. The strength and implementation of institutions and regulations vary across nations; moreover, the ASEAN Economic Community (AEC) itself, an ambitious project to create a regional single market, so far at least has few of the formal structures and mechanisms, rooted in a commitment to shared sovereignty, that have allowed the European Union to thrive.
Source: thediplomat.com - Lieu: Kingdom of Cambodia