Geography and harsh weather played a major role in the napoleons defeat during his invasion of

Whether or not a given study has the possibility of causing harm to participants:

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.

Why hasn’t the us already stopped birth tourism?give an explanatory response.