The underserved market radar is the discovery surface for supply-side BD. Instead of asking “how big is X for me?” the radar asks “where is X big enough, growing fast enough, and thinly enough supplied that I should care?” PharmaDB joins declared trade flows to lane competitiveness and filters on the rising-and-thin intersection. The view is molecule_country_flow; the join is to lane_competitiveness. Refresh cadence is weekly.