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.
Seeing your topic, I thought you want to share some tips on how to reduce the price of goods but felt disappointed after reading the post but it doesn't matter but your post is incomplete without you mentioning the specific areas where one person is sole distributor. Undoubtedly, price of goods have significantly increased but it's due to some factors and not the reason you gave above. In fact, I don't think there's any sector in Nigeria where one person is the sole distributor. Business is open to everyone and you can carryout your business as long as you have the means.
Going back to main discussion, the cost of food in Nigeria is attributed to over reliance on importation for staple crops like rice and wheat. Although, Nigeria has been working to increase domestic production of these crops, but it still relies heavily on imports despite the heavy and huge amount they're spending on agriculture. This reliance on imports can be affected by global economic conditions like changes in the exchange rate of the Nigerian naira as well as global supply chain disruptions.
To reduce this cost, government should invest in domestic production and work on the infrastructural development like roads for easier transportation of farm produce. This practice will definitely help to check on the price of foods and other commodities.