Cost of living in Bologna (Italy) is 57% more expensive than in Aden (Yemen)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 380 prices entered by 50 different people.
For example, you would need at least 394,539 ﷼ (€1,378) in Bologna to maintain the same standard of living that you can have with 251,000 ﷼ in Aden.