Cause2:Distribution network issues
Roads are not well maintained and gasoline is expensive. So they can only sell to nearby markets.
ex)How to carry milk in Bangladesh
●Milk transport and cold chain
"Cold chain" is a system that distributes food in frozen, refrigerated, and low-temperature conditions.
This system is essential because milk is easily damaged by heat.
However...
In Bangladesh, milk is carried by wheelbarrow.
The climate in Bangladesh is warm and moist.
Without a cold chain, it gets worse before it becomes "milk" at the processing plant.