Wallstreet 2: Money Never Sleeps is going to be a huge hit. I don't think that Hollywood is in touch with what the audience wants sometimes. We WANT Fahrenheit 911 soon after 9/11 but it represents a huge risk to the suits to make a movie that is that topical.

write what interests you. there are a lot of awesome economic related story ideas.
if you like financial statements and loads of wealth in your coffers...write that !@#$

I've heard it said that hope was the main thrust for movies during this time. Also, during the Screenwriter's Expo someone pitched an idea re economic hardship and the producer brought him aside to inquire the details.