Why are online payment services necessary?
a.) individuals who sell items online cannot afford to deal with credit card companies.
b.) it is too risky to use credit cards online, and online payment services have better security.
c.) government regulations require all online transactions be made using online payment services.
d.) online payment services are the only payment method that individuals who sell items online trust.

Amano s preguntes cationing to come fonds and consumer good 8. why did the u.s. government use rationing for some foods and consumer goods during world war ii?

When used-car dealers signal the quality of a used car with a warranty, a. buyers believe the signal because the cost of a false signal is high b. it is not rational to believe the signal because some used-car dealers are crooked c. the demand for lemons is eliminated d. the price of a lemon rises above the price of a good used car because warranty costs on lemons are greater than warranty costs on good used cars

The owner of firewood to go is considering buying a hydraulic wood splitter which sells for $50,000. he figures it will cost an additional $100 per cord to purchase and split wood with this machine, while he can sell each cord of split wood for $125. if, for this machine, design capacity is 50 cords per day, effective capacity is 40 cords per day, and actual output is expected to be 32 cords per day, what would be its efficiency?