Demurrage charges and arrearage loss are two very main ideas in nonsked ship business.

The city's current mayor, Luigi Brugnaro, has ridiculed UNESCO and told it to mind its own business, while continuing to support the cruise ship industry, which employs 5,000 Venice residents.

This, he says, could have been prevented if a well-connected business lobby had not illegally pushed the ship back into service when it still needed vital repairs.