There are a number of countries that use various techniques to keep foreign products out of their markets. the u. s. wants these markets opened to american products. what effect will the opening of these markets have on the countries' economies? use the ad/as model to answer the question.

Martha is one producer in the perfectly competitive jelly industry. last year, martha and all of her competitors found themselves earning economic profits. if there is free entry and exit, what do you expect to happen to the number of suppliers in the industry and the price of jelly? the number of suppliers will increase, and the price of jelly will fall. the number of suppliers will decrease, and the price of jelly will increase. the number of suppliers will increase, and the price of jelly will increase. the number of suppliers will decrease, and the price of jelly will fall.