g walnutia is a small country that produces walnuts. 10 years ago, walnutia did not trade walnuts with other countries and their domestic price was in equilibrium. later, walnutia o pened their market and started free trade walnuts with the world market. nowadays, their price reached equilibrium again, but this time, at the world price of the good. briefly explain how their supplies and demands have shifted and compare the surplus with and without trade.