HONG KONG (REUTERS) - For Hong Kong leader Carrie Lam, this week's World Economic Forum in Davos is a chance to convince global business and political leaders that the Asian financial hub is back on track.

After more than seven months of turmoil, Hong Kong's status as a financial centre has come under scrutiny as sometimes violent demonstrations paralysed parts of the city and forced businesses to close, posing the gravest popular challenge to Chinese President Xi Jinping since he took power in 2012.