Published in 2008, "The Ascent of Money" examines the history of money, credit, and banking. In it Ferguson predicts a financial crisis as a result of the world economy and in particular the United States using too much credit. He cites the China–United States dynamic which he refers to as Chimerica where an Asian "savings glut" helped create the subprime mortgage crisis with an influx of easy money. While researching this book, in early 2007, Ferguson attended a session at a conference in Las Vegas at which a hedge fund manager stated there would never be another recession. Ferguson challenged this, and later the two agreed on a $14,000, 7 to 1 bet, that there would be a recession within five years. Ferguson collected $98,000.