Ejercicio 3 - Model IS-LM a curt termini · Introducció a la Macroeconomia UPF 2024
Tema: Model IS-LM a curt termini · Del examen Sample Exam 2024 (2024)
Enunciado
3 Section A: Short open questions (1.8 points)
Provide concise, mathematically and economically grounded answers to the following short questions (0.2 points each):
g)
Using the IS-LM framework, illustrate graphically and compare the impact of an expansionary monetary policy under the following two alternative assumptions, starting from identical initial equilibria:
1. Investment spending by firms is highly sensitive to variations in the interest rate.
2. Investment spending is largely insensitive to interest rate variations.
Solución
Según los criterios oficiales de corrección
g. Illustrate graphically and compare the impact of an expansionary monetary policy under high vs. low interest rate sensitivity of investment.
Solución: IS-LM diagrams showing a downward shift of the LM curve: with high interest sensitivity, the IS curve is flatter and output increases substantially; with low sensitivity, IS is steep and output expands very little.
g. Comparative explanation of the impact on output.
Solución: When investment is highly sensitive, IS is flatter and the expansionary monetary policy generates a substantial increase in output. When investment is insensitive, IS is steep and output expands very little.
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