You can lump the three under the general category of statism. That philosophy always has and always will destroy, not build. From Manuel Tacanho at mises.org:
Today it is conclusive that Africa’s socialist experiments failed, as did the state-led development approach. Not only was the heavily statist approach unable to develop African economies, but it made poverty worse. In this context of repressive state-driven economic systems, most African countries are trapped in a morass of high inflation, high debt, high taxation, high dependency, worsening poverty, food insecurity, chronic mass unemployment, and other pervasive problems.
Barrel One: High Inflation
Africa’s unstable and inflationary currencies have been a significant impediment to economic development because of their destabilizing and impoverishing effect. Organic and lasting economic growth must necessarily be driven by savings, not by debt, deficit spending, or money printing.
In the long run, inflation ends in the breakdown of the currency. This is what happened in Angola in the 1990s and in Zimbabwe in the first decade of the 2000s.
Evidence from the past and present, from developed and developing countries, unequivocally shows that inflation is a government and central bank policy that cannot go on forever and that does come to a catastrophic end, however long the run may be.