How are the roles of resource owners and firms explained by the circular flow diagram of economic activity?

This is a government controlled by one person with absolute power. question 3 options: communist democratic autocratic parliamentary

On a production possibility curve, data points that fall outside of the curve represent what

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design