Clifford is a dog. clifford doesn’t really mind thunder and lightning at first. but then one day, he is out walking and there is a sudden bolt of thunder and lightning abruptly followed by heavy hail, wind, and rain, which frighten clifford. after this event, clifford is now afraid of thunder and lightning. in this example, what is the neutral stimulus?

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.

Fallon is on her way to work when she sees a little boy, who is crying and apparently lost. seeing the crying boy makes fallon very uncomfortable and upset. to reduce these negative feelings, fallon stops to the boy find his parents. which theory best explains fallon's behavior?

True or false? correlations can only be negative.