If There Is Diminishing Marginal Productivity of Labor in Production

Multiple Choice

If there is diminishing marginal productivity of labor in production (with other inputs held constant) , an outmigration of labor from low-wage country A to higher-wage country B will lead, other things equal, to a __________ in per capita income in country B and __________ in per capita income in country A.

A) rise; also to a rise
B) rise; to a fall
C) fall; also to a fall
D) fall; to a rise