Josh is a full-time college student who is not working or looking for a job. The Bureau of Labor Statistics counts Josh as

Sefronia and Bella share an apartment and they are deciding whether or not to purchase a weekly housecleaning service. The value of the service to each of them is $50 and it costs $80 to hire a housecleaner

Suppose Bella is lazy and a spendthrift and Sefronia suspects that Bella will be willing to pay $80. What is Sefronia likely to do, given that she is as rational as any other person? A) She might claim that she is not willing to pay for a housecleaner, hoping that Bella would pay the entire $80. B) She will correctly rationalize that Bella's laziness and spendthrift ways are irrelevant to the decision at hand. C) She will come clean and tell Bella that since Bella is lazy and a spendthrift she should pay a bigger share of the $80. D) She might offer to do Bella's housecleaning chores if Bella would pay her $50.

Conrad and Meyer (1958) counter Fogel and Engerman's (1974) claim that slave breeding was a myth by arguing that any profit-maximizing slave owner would consider slave breeding as long as:

(a) The expected rate of return from slave sales fell below the costs of rearing the slave to the age of sale. (b) Slavery was an irrational institution. (c) The expected rate of return from slave sales exceeded the costs of rearing the slave to the age of sale. (d) Slavery was an immoral institution.