When 68-year-old mrs. blake had a flat tire on a fairly isolated highway, she received from a passerby in less than 10 minutes. one year later, when she had a flat tire on a busy freeway, an hour elapsed before someone finally stopped to offer assistance. mrs. blake's experience best illustratesa. the mere exposure effect. b. altruism. c. the self-fulfilling prophecy. d. the bystander effect.

What words in the preamble to the constitution reflect the principle of popular sovereignty

Which characteristics are true of the arabian desert? choose all answers that are correct.has land mostly below sea levelcovers almost the entire arabian peninsulacontains the largest sand sea in the worldhas very few people living there

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.