In Krugman’s speculative attack model: a. What is the shadow exchange rate? Why does it increase over time? b. Why does the speculative attack occur at exactly the time the shadow exchange rate equals the fixed exchange rate? c. Why is there no jump in the exchange rate when the speculative attack occurs? d. How can the model be modified so a jump does take place when the speculative attack occurs?

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In Krugman’s speculative attack model:

a. What is the shadow exchange rate? Why does it increase over time?

b. Why does the speculative attack occur at exactly the time the shadow exchange rate equals the fixed exchange rate?

c. Why is there no jump in the exchange rate when the speculative attack occurs?

d. How can the model be modified so a jump does take place when the speculative attack occurs?

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Hi, thank you for the very fast response, right now I'm studying about Krugman’s speculative attack model.
Please help with the question (d):

In Krugman’s speculative attack model, how can the model be modified so a jump does take place when the speculative attack occurs?

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Can you help me for question (d), please?

In Krugman’s speculative attack model:

(a) What is the shadow exchange rate? Why does it increase over time?

(b) Why does the speculative attack occur at exactly the time the shadow exchange rate equals the fixed exchange rate?

(c) Why is there no jump in the exchange rate when the speculative attack occurs?

(d) How can the model be modified so a jump does take place when the speculative attack occurs?

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