2. Given two equations of the IS curve for a 3 sector economy:
IS₁ where Y = 2000 - 5000r
IS₂ where Y = 3000 - 5000r
a. Draw the curves IS₁ and IS₂ in a diagram using r = 5% and 10%.
b. Describe how the following factors shift the IS curve to the left.
i. Tax at once
ii. Use of autonomus
c. i. Calculate the gradients of the curves IS₁ and IS₂.
ii. Are these two curves parallel?
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