Total profit of a competitive firm can be found by multiplying profit per unit times units sold

If a market participant believes that a stock price is irrationally high, they may try to borrow stock from brokers to sell in the market and then make a profit by buying the stock back again after the stock falls in price. This practice is called

A) short selling. B) double dealing. C) undermining. D) long marketing.

Increasing taxes likely leads to an increase in activity in the underground economy

a. True b. False