The notion of the Asian Century assumes that Asian economies can maintain their momentum for another 40 years, adapt to shifting global economic and technological environment, and continually recreate comparative advantages. In this scenario, according to 2011 modelling by the Asian Development Bank Asia's GDP would increase from $17 trillion in 2010 to $174 trillion in 2050, or half of global GDP. In the same study, the Asian Development Bank estimates that seven economies would lead Asia's powerhouse growth; under the Asian Century scenario, the region would have no poor countries, compared with eight in 2011.[21]