One way courts have determined reasonableness is the bright line approach, which:
a. considers the totality of circumstances in each individual case.
b. assigns points to each indicia of reasonableness.
c. compares a case to other similar cases.
d. considers a specific rule that applies to all cases.

Mankiw attributes – chapter 1 and his 10 principles – differences in living standards within a countryover time and across countries at a moment in time to: a. the presence or absence of inflation and unemployment.b. the allocation of resources between private markets and the public sector.c. those that have dealt successfully with the efficiency v. equality tradeoff and those that haven’t.d. differences in productivity.e. ones that think at the margin and respond to incentives and those that don’t.