What was an effect of the decline in trade after the fall of the roman empire?

people moved to new urban areas.
small farms struggled and failed.
there was a shift to a rural society.
trade grew in other parts of europe.

According to history after the there was a shift to a rural society
after the fall of decline in trade after the fall of the Roman empire,  more and more people have ownerships over their land and buildings ( previously it all belong to the empire)
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