The correlation between per capita gross domestic product based on purchasing power parity (GDP PPP) and GDP PPP per area in Africa is moderate.  The three largest economies on a per capita basis all have a high per area GDP relative to other countries on the continent.

The chart above shows economic output as it relates to arable land.  The countries to the top left have a larger ratio of gross domestic product (GDP) to arable land, while countries to the bottom right have a smaller ratio of GDP to arable land.  Singapore, Hong Kong, and Bahrain have the largest ratio of GDP to area whereas Afghanistan, Cambodia, and Kazakhstan have the smallest ratio of GDP to area.

The chart above shows economic output as it relates to land area.  The countries to the top left of the diagonal line have a gross domestic product (GDP) of over one million international dollars per square kilometer, while countries to the bottom right have a GDP that is less than one million dollars per square kilometer.  Mauritius, Seychelles, and Nigeria have the largest ratio of GDP to area whereas the Central African Republic, Mauritania, and Niger have the smallest ratio of GDP to area.

In Africa, the inverse correlation between the strength of the shadow economy and the minimum wage is very weak.  There is no real relationship between the strength of the shadow economy and minimum wage.

In Africa, the correlation between economic strength and the minimum wage is pretty weak.  The majority of nations on the continent have a per capita GDP PPP below 10,000 international dollars and a minimum wage below 4,000 international dollars.

In Africa, the correlation between economic strength and the strength of the shadow economy is pretty strong.  Crime certainly doesn't pay, it seems.