This publication about the urban agenda in the Greater Mekong Subregion (GMS) is timely as the world economy embraces the region with accelerated growth. An important element of the Association of Southeast Asian Nations Economic Community, the GMS is expected to catch up with the rest of Asia by 2050. With urbanization levels still averaging about 30%, gross domestic product contributions of towns and cities have moved ahead to 50%–60%. By 2050, when urban areas in the GMS reach 64%–74%, urban gross domestic product will grow to an estimated 70%–80%. The challenge lies in consolidating and deepening development along the existing corridors and improving the environmental conditions to prepare for future green growth developments.

The 2014 Development Effectiveness Review (DEFR) is the eighth in a series of yearly reports by the Asian Development Bank (ADB) on its performance in achieving the priorities of Strategy 2020, its long-term strategic framework for 2008-2020. The results framework on which the DEFR is based was updated in 2014 to reflect the recommendations of the Midterm Review of Strategy 2020. The 2014 DEFR tracks recent development progress in Asia and the Pacific, assesses ADB's development effectiveness, and identifies areas where ADB's performance needs to be strengthened.

The 2015 Development Efectiveness Review (DEfR) is the ninth in a series of yearly reports by the Asian Development Bank (ADB) on its performance in achieving the priorities of Strategy 2020, its long-term strategic framework for 2008-2020. The 2015 DEfR tracks recent development progress in Asia and the Paciic, assesses ADB’s development efectiveness, and identiies areas where ADB’s performance needs to be strengthened.