Question

Analyse Eskom in terms of the characteristics of monopoly

Answer 1

Only one firm selling all products in the market.
The absence of the substitutes of these suppliers.
The policy of unique product, i.e., absence of substitute the product sold by one firm, 
Barriers to the entry and exit to the markets in terms of government, franchise, patents, copyrights, ownership.
Control of complete information e.g. secret formula.