Please I need answer for This question at the moment about one hour because i have assignment today,and it is very important and I need solution for this issue with all the details .please you can write the answer typing and not write by hand,so that I can read and understand your answer clearly.I need step by step solution to the following this question asap .I have limited time so please do it quickly with detailed explanation.thanks in advance/Ha

1. A large share of world trade is conducted between high-income countries and where countries often export and import goods within the same sector: so-called intra-industry trade. Classical trade models are not able to explain this, but a newer model that addresses such trade is the model of monopolistic competition. This question will ask you to apply this model to a situation where two identical countries start to trade with each other.

a) Explain first the relationship between the average cost of firms and the number of firms in the model. The model refers to this as the CC-curve.

b) Now explain the relationship between the prices that firms charge and the number of firms, referred to in the model as the PP-curve.

c) Use the two curves in the same graph and explain what happens to cost, prices and the number of firms when two identical countries start to trade with each other. Explain your answer.

d) Assume now that firms have different costs. Which firms will benefit from trade and which will lose? And if the firms that benefit increase in size and other firms shrink, how may this affect aggregate welfare? Explain your answer.