Ha Noi, the Vietnamese capital, is renowned for its congested traffic. The government wants to build a third ring road around the city.But it doesn’t have enough money for such a major project, with two other ring roads already under way. Some of the construction is being funded on a BOT basis—build, operate, transfer, whereby the investor constructs and maintains the ring road and gets the toll revenue for a certain period before handing it back to the public—and official development assistance from the Japan International Cooperation Agency.However, private investors aren’t much interested because the expected returns on investment are too low. How can the government increase the returns to make investment more attractive to private companies?Read the transcripthttp://bit.ly/2wsCssCAbout ADBI dean, Naoyuki Yoshinohttps://www.adb.org/adbi/about/dean Watch an ADBI video about spillover effectshttp://bit.ly/2eZaTQMKnow more about ADBI’s work on spillover effectshttp://bit.ly/2vVF81w