There are questions in Papua New Guinea around the affordability of major new infrastructure projects being developed with China.
PNG's government recently announced the US$900-million Ramu 2 hydropower project to be led by Chinese company, Shenzhen Energy Group.
This month the government also confirmed Exim Bank of China would finance the construction of a US$200m domestic submarine cable project.
The executive director of PNG's Institute of National Affairs, Paul Barker, told Johnny Blades there are questions related to how sustainable the projects are and the costs entailed.
Mr Barker began by discussing the hydropower project.