The World Bank has estimated that an additional US$1 trillion per annum to 2020 is required by developing countries to keep pace with consumer and producer demand for infrastructure. To keep pace with projected global GDP growth, the infrastructure financing gap increases to an estimated US$57 trillion over the period to 2030 (MDB Working Group on Infrastructure, 2011). Alternatively, the World Economic Forum (WEF ) estimates that close to US$2 trillion per annum will be required to meet the infrastructure needs of developing economies by 2030 (WEF, 2012).

For the Asia-Pacific, the Asian Development Bank (ADB) estimates that $750 billion in financing each year will be required by 2020 to meet the region’s infrastructure needs (ADB, 2011).