South Africa manufactures 110,000 tons of paper. However, domestic demand for paper is 200,000 tons. The world price for paper is USD5.00 per ton. South Africa will import 90,000 tons of paper from the world market at free trade prices. If the South African government (a small country) decides to impose a tariff of 20 percent on paper imports, the price of imported paper will increase to USD6.00. Domestic production after the imposition of the tariff increases to 130,000 tons, while the quantity demanded declines to 170,000 tons. 

1. Calculate the loss in consumer surplus arising from the imposition of the tariff on imported paper.

2. Calculate the gain in producer surplus arising from the imposition of the tariff. 

3. Calculate the gain in government revenue arising from the imposition of the tariff. 

4. Calculate the deadweight loss arising from the imposition of the tariff.