In a 4 quart slow cooker combine the stew meat, beans, tomatoes, corn, pepper, beef broth, and bouillon cube. I like to have the liquid come near the top of the cooker, so you depending on the size you use you may want to add a bit more broth or water.
Let this cook on low for 7 1/2 - 8 hours. In the final half hour add in the cumin and flour and mix this together, then let cook an additional 30 minutes. This will allow the stew to thicken a bit.