When the nephews suggest simply printing "a few billion more dollars", Scrooge explains that a billion is actually far more than they think and that making more money would lead to dangerous inflation. He describes that it is what you can buy with what you've got is what counts, and that it is a question of economics, and how one must balance one's budget like the pieces of a pie to live comfortable, adding that income tax pays for everything from schools to roads and must be factored in as well. He clarifies that his enormous vault holds only "petty cash" and that money must circulate "like ocean currents" to keep the world moving, and advises his nephews to invest their money very wisely to make it grow. He then agrees to deposit it for them—for a 3¢ fee. Scrooge concludes that investing wisely is an art.
