The Root Cause of Scandinavian Piracy

During this era you see the growth in these emporiums and trading centers. Places where you can take stolen goods and fence them places where you can convert cash or pretty metals that don't have any other purpose into usable goods. It's also possible that all this wealth coming into Scandinavia through piracy is creating a level of inflation I mean they're finding tons and tons of coins from the Islamic states in Viking era Scandinavia.