He said: "Scotland has a growing reputation for staging successful world-class events and securing the 2018 Youth Olympic Games would be a fantastic opportunity to build on the experience and skills developed through delivering an outstanding Commonwealth Games in Glasgow in 2014.
"Hosting another global sporting event in the city will continue to develop real legacy and impact from Glasgow 2014, as well as demonstrating the warmth and enthusiasm the city and Scotland hold for athletes and spectators."
As with the senior elite competition, the Youth Olympics are held once every four years. Singapore staged the first competition in 2010 and the next is in Nanjing, China, in 2014.
The final three bid cities face further questioning and assessment from the IOC about why and how they propose to stage the Games.