6. Do you know from personal observation whether a Mexican, a German, or an American, is the best workman?
7. What important personal traits are needed to make a man an efficient market-gardener?
8. Which would be of the greatest economic advantage, to increase by 50% the intelligence, the physical strength, or the integrity of the workers of this country?
Chapter 21. The Supply of Labor
1. Has the principle of the survival of the fittest any influence on the population of America?
2. What limits the number of wild rabbits? Of tame pigeons? Do the same influences act in the case of men?
3. What other influences affect population?
4. What relation is there between population and mountains, temperature and water-supply?
5. It has been said that the supply of labor is fixed by biologic laws. Is it therefore not subject to economic influences?
6. What application do you think the principle of diminishing returns has to the question of population?