PPP has yet to prove that it is appropriate in transition economies because of political and economic differences .
This built on the success of Public - Private Partnerships ( PPPs ) in developed countries since the model again became popular in the 1980s .
PPPs has yet to prove that it is appropriate in transition economies because of political and economic differences .
This built on the success of Public - Private Partnerships ( PPPs ) in developed countries since the model again became popular in the 1980s .