Best Lights wants to prevent Bright Lights from entering the light bulb market. If Best Lights advertises that it will always undercut any competitor's price, the effect of advertising ________ Best Lights' profits due to its cost and ________ Best Lights' profits due to a(n) ________ in its demand.

The three reasons why the aggregate demand curve slopes downward are

a. the international substitution effect, the net exports effect and the interest rate effect. b. the interest rate effect, the short run effect and the free rider effect c. the net exports effect, the real balance effect and the short run effect d. the real balance effect, the international substitution effect and the interest rate effect.

The early goldsmiths issued money in the form of

A. coins made from gold in their safes. B. receipts for the acceptance of gold deposits. C. gold fragments left over from the production of jewelry. D. fully backed gold certificates.