Nba all-star baron davis and his school friend, cash warren, premiered their first movie "made in america" at the sundance festival in january 2008. the movie, based on gang activity in south central los angeles, received good reviews. a. sketch a ppf between playing basketball and producing other goods and services for baron davis and for yourself. b. how do you (and people like you) and baron davis (and people like him) gain from specialization and trade?