Why do financial crises happen, what do they look like, and what models do economists have to explain them? These questions are the subject of lectures 7 and 8. We'll use Ireland as our example, because we have seen a boom bust cycle recently. 
Extra readings on the topic of crises in financial markets and banking crises especially through history are here, here and here.
You should also read this, and chapter 4 of Pilbeam. Donna will go through Portfolio theory in classes this week, and there are no lectures Friday or Monday, as I'm traveling. We'll do make up classes at the end of the term.
Click here for the slides, they are up on slideshare below.