3A. Draw the relevant diagram to show how the price and number of varieties (or rms) determined in the monopolistic competition model? Make sure you label all relevant curves and axes. Show on the diagram how an increase in the market size affects various curves and the equilibrium price and the number of varieties produced. 38. "The basis of intra-industry trade is the difference in endowments or technology between the two trading countries. \" Defend or reject this statement with reference to basis of trade in different theories of trade. 3C. A friend in your study group tells you, \"The import quota and the voluntary export restraint have exactly same effect of welfare of a country except that the VER is imposed by the foreign government (at the request of domestic government) and the import quota is imposed by the domestic government. So, you only need to study the import quota and remember that little difference.\" Do you agree or disagree? Explain why. 3D. A friend in your study group tells you, "A tariff and an equivalent quota have identical effect on the welfare of a country." Do you agree or disagree? Support your stance with suitable explanation. (15+15+15+15)