Give an example of a negative externality and an example of a positive externality

Which of the following best describes biochemical evidence that would not support the modern concept of evolution? a. a bacterium that uses inorganic materials to produce energy b. an organism that does not undergo cellular respiration c. a species of bacteria that is capable of photosynthesis d. an organism that undergoes both aerobic and anaerobic respiration

Beranek corp has $720,000 of assets, and it uses no debt--it is financed only with common equity. the new cfo wants to employ enough debt to raise the debt/assets ratio to 40%, using the proceeds from borrowing to buy back common stock at its book value. how much must the firm borrow to achieve the target debt ratio? a. $273,600b. $288,000c. $302,400d. $317,520e. $333,396

What is marginal costs and benefits might a tour boat operator consider when deciding whether to purchase a new boat?