There's been an enormous wave of f and s.f. literature recently that has been focused on economics. I think this started with Cory Doctorow's reputation based economy in Down and Out in the Magic Kingdom, or possibly Charles Stross' bandwidth based economy 2.0 in Accelerando.
Anyway, my point is that it was only a matter of time before Terry Pratchett got involved. His newest Discworld book (the 36th if you count Strata and Where's my Cow?) , Making Money, is a sharply written fictional history of the end of the Gold standard and the birth of the treasury department. And once again Pratchett proves why he is the best satirist working today.
He's been writing at least a book a year in the same series for 2 decades now, and he still manages to keep the series fresh with his sped up industrial revolution and stand alone story structure to the series. Furthermore I still think he has the best understanding of mass behavior of anyone alive, he could probably show up most sociologists.