Dervivative Team Betting: Learning from Prof. Meyer I learned a key concept today.
All things being equal "20" is a more key number for NFL fav's than it is for dogs, specifically NFL fav's 'land' on 20 more than dogs, given both are projected to score about 20.5 points.
This actually makes sense. NFL teams score more TDS than Fgs. Assuming we score 17 points, and we are in the 4q it is much more likely the fav. is ahead/within 1-3 and will kick a fg. With the dog, if the team is down 31-17, we are 'drawing dead' to 20 here.