Definitions of salary and hourly wage

Which of the following situations is most likely to change a buyer's market into a seller's market? a. a natural disaster that drives away a lot of the population. b. the price of building materials suddenly going up. c. the government buys up a lot of houses to build a new freeway. d. a factory laying off a lot of workers in the area.

What criteria does a company have to meet to be considered a monopoly?

What effect, considered related to the secondary effect of advertisement, occurs as an advertisement begins to lose its impact when it gets old? the makes the advertisement lose its impact after it gets old.