When the economy is producing the maximum amount that it can, increasing the money supply will cause prices and output to increase

The value of the WhatsApp Messenger to an individual user increased as more of his friends and acquaintances started using it. This is an example of a(n) ________

A) moral hazard B) adverse selection C) network externality D) negative externality

Refer to Table 4-3. The table above lists the marginal cost of polo shirts by Marko's, a firm that specializes in producing men's clothing. If the price of polo shirts decreases from $15 to $10

A) producer surplus will fall from $13 to $3. B) consumers will buy no polo shirts. C) there will be a shortage of polo shirts. D) the marginal cost of producing the third polo shirt will increase to $25.