Exhibit 30-4

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Refer to Exhibit 30-4.  If a negative externality exists, then the market ____________output by the amount ________________.

__________ and __________ quotation are also referred to as American and European Quotes.

Fill in the blank(s) with the appropriate word(s).

Refer to the figure above. What is the domestic production of calculators in Barylia, once the economy opens up to free trade?

A) 10 units B) 30 units C) 60 units D) 100 units