Use the graph to answer the following questions about CDs. 
a.What is the equilibrium price of CDs before trade?
b.What is the equilibrium quantity of CDs before trade?
c.What is the price of CDs after trade is allowed?
d.What is the quantity of CDs exported after trade is allowed?
e.What is the amount of consumer surplus before trade?
f. What is the amount of consumer surplus after trade?
g. What is the amount of producer surplus before trade?
h. What is the amount of producer surplus after trade?
i. What is the amount of total surplus before trade?
j. What is the amount of total surplus after trade?
k. What is the change in total surplus because of trade?
Definitions:
Socially Stressful Conditions
Situations or environments that induce stress due to social interactions or expectations.
Psychological Disorders
Patterns of behavioral or psychological symptoms that impact multiple areas of life and create distress for the person experiencing them.
Control Group
A control group is a baseline group in an experiment that does not receive the experimental treatment, used to compare and assess the effect of that treatment.
Typhoid Fever
A bacterial infection caused by Salmonella typhi, characterized by high fever, weakness, stomach pains, headache, and sometimes a rash.
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