This will be a toolset for Advanced Corporate Finance (Fin 401 at SBU) and MBA 610 (Financial Management)
Financial Intermediaries exist to lower transaction costs. I use this to start almost all of my classes.
WIkipedia has a pretty good page covering the history of the NYSE
A look at the history of stock markets from wandering "brokers" to the founding of the first markets
How credit agencies work from Marketplace on Vimeo. Great stuff with a simple example
A look at defaults and credit ratings. The key takeways here: Table 1&3 --note the default rate for speculative vs investment grade. ...