One question which shouldn't take more than 5 minutes for an expert. Please include steps/explanations.
1. Say that country A's MPL = -L + 11 and country B's MPL = 2L + 5. What would be the optimal amount of L? Note: country B's MPL is written in terms of the coordinates of country A.
a. Does the MPL for both countries graph as you would expect?
b. Say that country A originally had 1 unit of labor and country B had the rest. Then, migration is allowed. By how much does welfare improve?