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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. What does Schelling say about binary choices?
(a) Everyone faces them at some point.
(b) Sometimes they are paradoxes.
(c) They are like life or death decisions.
(d) They are the building blocks of economic modeling.

2. How does Schelling arrive at the number of genetic possibilities in two people's offspring?
(a) By adding the number of possible eggs and the number of possible sperm.
(b) By running the eggs and sperm through polymerase chain reactions.
(c) By dividing the number of possible eggs and the number of possible sperm.
(d) By multiplying the number of possible eggs and the number of possible sperm.

3. What does Schelling say about the number of genetic variations that can take place when a man and a woman have a baby?
(a) The number is vast.
(b) The number is limited by the parents' social class.
(c) The number is limited by the parents' environment.
(d) The number is limited by the parents' genes.

4. How many distinct sperm does Schelling say a man can produce?
(a) 4 million.
(b) 1 million.
(c) 8 million.
(d) 180,000.

5. What does Schelling say would be the result of chromosomal selection that allowed parents to select for high-IQ children?
(a) Schools would not have to keep children until sixteen years of age.
(b) The incidence of social problems would increase, since intelligence and maturity are different variables.
(c) Parents would not have to work because their children would make more money and support them.
(d) The IQ range would yield a higher average IQ.

6. What does Schelling say would be the downside to chromosomal modification?
(a) Unforeseen medical problems might emerge.
(b) People could argue that traits result more from nurture.
(c) Parents would feel pressure to compete by giving their children the modification.
(d) The concept of human-ness might be diminished.

7. What assumption does Schelling make about people's feelings about nuclear weapons?
(a) People universally need them as deterrents.
(b) People are tormented about loving and loathing them.
(c) People universally abhor them.
(d) People universally see them as humanity's salvation.

8. Under what condition would the population not be constrained by a mathematical identity after the youngest ten percent of a population moved away?
(a) The people would still have to live within a reasonable distance.
(b) The young people would not be able to come back for visits.
(c) The remaining people would have to be the same age.
(d) The remaining people would have to fill in the work the youngest people had done.

9. What does Schelling say about the results of segregation and integration models?
(a) They are occasionally statistically useful.
(b) They can be deceptive.
(c) They are interesting.
(d) They have gravitas.

10. What does Schelling say is the best use of sorting and mixing models?
(a) Population and food supply.
(b) Free markets.
(c) Residence or membership.
(d) Marriage and evolution.

11. What does Schelling say would be at risk in a culture where parents preferred male children?
(a) Safety.
(b) Cultural traditions.
(c) Religion.
(d) Monogamous marriage.

12. What continuous variable does Schelling say parents could select for?
(a) Eye color.
(b) Left versus right-handedness.
(c) Longevity.
(d) Eyesight.

13. What model of human behavior does Schelling say arms control follows?
(a) Commons model.
(b) The herding instinct.
(c) Binary choice model.
(d) Critical-mass model.

14. What can a closed system with a density enhancement include, in Schelling's analysis?
(a) Ethnicity, mobility and community.
(b) Morality and ethics.
(c) Age, income and marital status.
(d) Heritage and culture.

15. What U.S. President decided not to use nuclear weapons in Kuwait?
(a) Ronald Reagan.
(b) Bill Clinton.
(c) George H. W. Bush.
(d) George W. Bush.

Short Answer Questions

1. What does Schelling ultimately say about choosing the sex of one's baby?

2. What does the success of a binary choice model depend on, in Schelling's analysis?

3. What does it mean if the median age is 45 in an open model?

4. What discrete variable does Schelling say parents could select for?

5. Why does Schelling say hockey players resist wearing helmets, when they already know they are safer?

(see the answer keys)

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