What’s your opinion on death Penalty?

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?

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.

Can someone explain and give me two examples of checks and balances in usa government right three examples