I have been thinking and trying to analyze what is really causing the high cost of food in Nigeria, I came to realize that monopoly is the major factors, Nigeria government are the enablers. How can one person be the sole major distributor, government should welcome competition in the business sector, every business person should be allowed to produce.
As per your statement, they can easily manage to manipulate the number of foods they can hoard as much as they want, we know how does the government have power for the economy reason why some of community or even country fails to manage properly and the people will suffer with this greediness. You cannot reduce this if the government doesn't take any action else you will do something like make your own plantation of the resources you need its more cheaper than buying those into malls and market.