[ncocacola]

I don't know what level/classes you're taking, but I'm doing graduate classes in economics at the moment, and most concepts in macro are time-based (studying transient/long-term dynamics of systems, finding steady-states etc.).

In fact, it reminds me a lot of my undergrad electrical engineering classes.

[WorldMaker]

All of the economics courses I took in college were undergrad. It says something about the field if the comparison is between graduate level economics classes and undergraduate level engineering classes.