There are calls in Papua New Guinea for governments to maintain consistent business policies and not lurch in favour of particular operators.
The Director of the Institute of National Affairs, Paul Barker, says in a recent example special concessions were made for the operators of a casino to be built in Port Moresby.
Mr Barker questions the benefits s of this type of development, when it is the small eco-businesses that are bringing the tourists into PNG.
"This simple reason is one particular investor, a Korean company that is acquiring some government land is coming in with a casino and the government has just brought through legislation to allow casinos, so this is a special deal and special deals really are not in the interests of Papua New Guinea."
Paul Barker says the Ramu nickel mine has also got tax concessions.
