Protectionism is a major concern in the international trading community. The question that arises is how the emergence of protectionism can be prevented and whether regional trade arrangements are a suitable mechanism to enforce liberal trade policies. This book examines these issues, concluding that the success of regional trading arrangements in enforcing good trade policies depends on the quality of the regional agreement and its implementation - simple free trade area is unlikely to be sustainable in the long-run without firm commitments of members to deeper integration.