The most significant international undertaking to prevent worsening of global warming is the

Trade is often restricted because the

A) gain per producer is larger than the loss per consumer. B) total gain to all producers is larger than the total loss to all consumers. C) gain per producer is less than the loss per consumer. D) total gain to all producers is smaller than the total loss to all consumers. E) gain per consumer is larger than the loss per producer.

If an increase in income leads to in an increase in the demand for peanut butter, then peanut butter is

A) a neutral good. B) a necessity. C) a normal good. D) a complement.