When a child with autism spectrum disorder jumps, flaps his arms, twists his hands and fingers, and makes unusual faces, the child is engaging in: ?

Which three sentences in the story indicate that the passage is an ex nihilism type of creation story?

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.

Which label identifies the step labeled w?