What are the choices the Asia-Pacific community will face if it proceeds further down the path of developing preferential regional trading arrangements? Fragmentation of the region into preferential trading arrangements on a bilateral or subregional basis promises relatively little economic gain and considerable risk of increased trade conflict. Larger preferential trading blocs, spanning the whole of East Asia, the Western Pacific, or the APEC membership, offer greater potential economic benefits but also face formidable political obstacles.

In this study, Scollay and Gilbert weigh the...