For economic advice, Wallace visited the chief cashier of the Bank of England. He decided to create a brand new currency, which he called the Interdependent Occupational Unit (IOU) . However, you can't open a bank account or take out a loan in Lovely. And forget trying to draw out IOUs with a cash card for the simple reason that there aren't any banks there. The IOU is part of a much more casual economy, free from things such as interest rates. It's based on the phrase' time is money'. You basically do something for someone and they'll do something later for you.