In a saucepan over medium heat, brown the ground beef with the chili powder, cumin, paprika; breaking it up into smaller pieces. Season with salt and pepper. Add the broth and tomato paste. Bring to a simmer on low medium heat until the flavors combine together and the broth thickens. Season with salt and pepper to taste.
In the meantime, grill the hot dogs on a medium heat grill or in a non-stick pan until golden brown on all sides.
Place the hotdogs on the rolls, top with chili and scallions. Serve with chips and a pickle.