Fill in the blank

_______1. It imposes taxes on imported goods which can be produced

______2. It describes the direct and indirect effect of an external source of income introduced into the economy.

_______ 3. A ratio obtained by dividing the benefits with the costs.

______ 4. The value of goods and services that must be imported to meet the needs of tourism and hospitality services.

______ 5. An economic theory which emphasizes the development of supply.