 Obviously, a lot has changed since Thales’ times, both in finance and in our ethical and political attitudes towards finance. Coins have largely been replaced by either paper or electronic money, and we have built a large infrastructure to facilitate transactions of money and other financial assets—with elements including commercial banks, central banks, insurance companies, stock exchanges, and investment funds. This institutional multiplicity is due to concerted efforts of both private and public agents, as well as innovations in financial economics and in the financial industry (Shiller 2012).