A. dell makes an annual economic profit of $5 billion by investing in r& d and an economic profit of $6 billion by not investing in r& d.
b. amec has two waste water treatment plants in texas.
c. procter and gamble has recorded an increase in profits in the last two quarters.
d. chinese companies are facing rising labor costs.

He set of companies a product goes through on the way to the consumer is called the a. economic utility b. cottage industry c. market saturation d. distribution chain

Which statement is true about the elements of the interface of a presentation program? a. the status bar appears at the top of the page and displays options to style your slides. b. the tool bar displays the thumbnails of your presentation slides in the order they will appear in the presentation. c. rulers indicate the margins, tabs, and indents in a presentation slide. d. the document area provides a list of commands to create, format, and edit presentations.

Aprice ceiling is “binding” if the price ceiling is set below the equilibrium price. suppose that the equilibrium price is $5. if a price ceiling is set at $6, this will not affect the market in any way since $5 remains a legally allowable price (since $5 < $6). a price ceiling of $6 is called a “non-binding” price ceiling. on the other hand, if the price ceiling is set at $4, the price ceiling is “binding” because the natural equilibrium price is $5 but that is no longer allowed. what happens when there is a binding price ceiling? at a price below the equilibrium price, quantity demanded exceeds quantity supplied. there is a shortage. normally, price increases eliminate shortages by increasing quantity supplied and decreasing quantity demanded. in this case, however, price increases are not allowed past the price ceiling. we therefore predict that the observed market price will be right at the price ceiling and there will be a permanent shortage. the observed quantity bought and sold will be dictated by the quantity supplied at the price ceiling. although consumers would like to buy more, there are no more units for sale