Refer to Table 21.1. If Martha's income doubled to $220,000 while the incomes of the other four residents did not change, what would happen to the original mean income on Richlandia?

Economic development is distinguished from economic growth by:

a. accumulation of capital b. shifts in the structure of output c. higher per capita income d. improved standards of living e. all of the above

What is the law of diminishing returns? Give a descriptive example

Please provide the best answer for the statement.