The six countries of South East Europe (SEE6) are aging fast and catching up with developedeconomies that are already far advanced in the aging process. Low fertility rates are reducing working-age populations across the SEE6. The adverse SEE6 demographic dynamic is aggravated by emigration. In the absence of any policy and behavioral responses or changes in labor productivity, andwhere population aging reflects solely declining overall labor force participation rates, agingitself would be expected to negatively impact economic growth. Boosts in productivity are one of the key ways to counterbalance potential negative effects ofaging on economic growth. Changes in both individual and business behavior supported by policies that increase qualityof human capital and encourage labor force participation can help seize the opportunitiesand mitigate the adverse effects of an aging population.