In Spring 2014 I talked a bit about DSGE models. DSGE stands for Dynamic Stochastic General Equilibrium. Models like this are how macroeconomists answer serious questions theoretically.
Discussions of them started showing up in principles books a few years back. In intermediate macro, students need to know that the descriptive/Solow growth models that they work with in class are the starting point on a road that leads to DSGE models.
Anyway, now there’s a blog that covers results strictly from DSGE models: NEP-DGE Blog.