In: Economics
The European Union (EU) and United States (US) demand and supply equations for corn are: QDEU = 70 – 2 PEU QSEU = 20 + 3PEU QDUS = 130 – 3PUS QSUS = 30 + PUS where QD and QS represent the quantities demanded and supplied in both countries (in billions of tons) and P represents the Dollar price per ton of corn in each country. a. Graph the US and European Union supply and demand curves for corn (what are the intercepts?). b. Determine the US and European Union equilibrium prices in the absence of trade. c. Find the surplus (or shortage) in both countries at the price of $ 20.
a) Intercepts are found by replacing the x-axis variable(quantity) by 0 and then by replacing the y-axis variable (price) by 0.
b) for equilibrium equate demand with supply for each country. After finding the equilibrium price put it back in any one equation (demand or supply, I have used Demand) to find out the equilibrium quantity.