5. Considering the following supply and demand equations (20 Points):
𝑄𝑠 = 3𝑃 − 1
𝑄𝑑 = −2𝑃 + 9
𝑑𝑃/𝑑𝑡 = 0.5(𝑄𝑑 − 𝑄𝑠)
a) Find the expressions. 𝑃(𝑡), 𝑄𝑠(𝑡), and 𝑄𝑑(𝑡). When 𝑃(0) = 1, is the system stable or unstable?
b) If the constant for the change of excess of demand changes to 0.6, this is:
𝑑𝑃/𝑑𝑡 = 0.6(𝑄𝑑 − 𝑄𝑠)
do 𝑃(𝑡), 𝑄𝑠(𝑡), and 𝑄𝑑(𝑡) remain the same when 𝑃(0) = 1?
Comments