Sri Lanka, July 30 -- Sri Lanka recorded one of the biggest improvements in the world in how it communicates with international investors.

That's according to the Institute of International Finance, the global association of banks and financial institutions, which released its annual Investor Relations and Debt Transparency Report this month.

The report scores 57 emerging and developing economies on how openly they share debt, fiscal and policy information.

Sri Lanka scored just under 44 points out of 50, placing it 14th overall, and well above the survey average of 37.

More striking is the movement.

Sri Lanka's score rose by more than 6 points in a single year, the fourth-largest gain of any country assessed.

Only Vietnam, Belize a...