Suppose that in Milford, Connecticut, owners of used cars that are lemons value their cars at $2,500, and owners of used cars that are reliable value their cars at $6,000. There are equal quantities of each type of car on the market. Buyers value low-quality cars at $1,500 and high-quality cars at $7,000. In this market: a. only low-quality cars will be sold at a price of $1,500.
b. only low-quality cars will be sold at a price of $2,500.
c. all cars will sell at a price of $4,250.
d. only high-quality cars will be sold at a price of $6,000.
e. only high-quality cars will be sold at a price of $7,000.

Which of the following pairs is most similar to each other? a. barter goods and fiat money b. digital money and barter goods c. fiat money and digital money d. commodity money and digital money

Who is better at multi-tasking? in business, employees are often asked to perform a complex task when their atten-tion is divided (i.e., multi-tasking). human factors (may 2014) published a study designed to determine whether video game players are better than non–video game play-ers at multi-tasking. each in a sample of 60 college stu-dents was classified as a video game player or a non-player. participants entered a street crossing simulator and were asked to cross a busy street at an unsigned intersec-tion. the simulator was designed to have cars traveling at various high rates of speed in both directions. during the crossing, the students also performed a memory task as a distraction. two variables were measured for each student: (1) a street crossing performance score (measured out of 100 points) and (2) a memory task score (measured out of 20 points). the researchers found no differences in either the street crossing performance or memory task score of video game players and non-gamers. “these results,” say the researchers, “suggest that action video game players [and non-gamers] are equally susceptible to the costs of dividing attention in a complex task”

Why is efficiency an important economic goal?