There are two cities, Arlington and Bethesda. Each city starts off with 6 workers, with skill levels S = 0,1,2,3,4,5. The wage for a worker of skill S in Arlington is wA = 4 + 3S while the wage for a worker of skill S in Bethesda is wB = 6 + 2S. Workers are free to move between Arlington and Bethesda. There is a migration cost of M = 1.5. 1. Which workers move from Arlington to Bethesda? 2. Which workers move from Bethesda to Arlington? 3. Define "positive selection" and "negative selection" for migration decisions. Are migrants from Arling- ton to Bethesda positive or negatively selected in part (1)