True or false Validity refers to how authenitc or whether information was manipultated

Which of the following is an effective strategy when interest rates are falling? a. use long-term loans to take advantage of current low rates. b. use short-term loans to take advantage of lower rates when you refinance a loan. c. deposit to a short-term savings instrumentals to take advantage of higher interest rates when they mature. d. select short-term savings instruments to lock in earnings at a current high rates.

If a product goes up in price, and the demand for it drops, that product's demand is a. elastic b. inelastic c. stable d. fixed select the best answer from the choices provided

In north korea, a farmer’s income is the same as a dentist’s income. in a country with a mixed or market economy, the difference between those two professions might be more than 5 times different. how can you explain the fact that individuals doing the same work in different countries do not earn comparable salaries?