Economics is the study of what?
a.
the production, distribution, and consumption of goods and services
b.
the supply and demand of products in capitalism
c.
the change from the barter system to the money system
d.
the difference between capitalist, communist, and socialist states

Countries that are neither core nations nor peripheral nations

The health care system in is referred to as a singleminus−payer health care system, and is a system in which the government provides national health insurance to all residents.

Apsychologist was interested in the effect of hunger on psychological disturbances. the psychologist deprived half of a group of healthy volunteers of food for one day and fed the other half normally, then administered the mmpi-2 to all the participants. what was the independent variable?