Market demand is given as Qd = 75 – P. Market supply is given as Qs = 3P + 15. If price increases from $5 to $7, what is the price elasticity of demand? Question 5Select one: a. 0.1 b. 0.3 c. 1.1 d. 2.3 e. None of the above.
Question
Market demand is given as Qd = 75 – P. Market supply is given as Qs = 3P + 15. If price increases from 7, what is the price elasticity of demand? Question 5Select one:
a. 0.1
b. 0.3
c. 1.1
d. 2.3
e. None of the above.
Solution
Para calcular la elasticidad precio de la demanda, primero necesitamos encontrar la cantidad demandada a los precios inicial y final, y luego usar la fórmula de elasticidad precio de la demanda.
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Encuentra la cantidad demandada a los precios inicial y final:
- Precio inicial (P1) = $5
- Precio final (P2) = $7
Usamos la ecuación de la demanda Qd = 75 - P.
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Cantidad demandada inicial (Qd1) cuando P = 5: Qd1 = 75 - 5 = 70
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Cantidad demandada final (Qd2) cuando P = 7: Qd2 = 75 - 7 = 68
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Calcula el cambio porcentual en la cantidad demandada y el cambio porcentual en el precio:
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Cambio en la cantidad demandada (ΔQd) = Qd2 - Qd1 = 68 - 70 = -2
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Cambio en el precio (ΔP) = P2 - P1 = 7 - 5 = 2
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Cambio porcentual en la cantidad demandada:
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Cambio porcentual en el precio:
-
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Calcula la elasticidad precio de la demanda:
La fórmula de la elasticidad precio de la demanda es:
Sustituyendo los valores:
La elasticidad precio de la demanda es aproximadamente -0.0715. Dado que la elasticidad precio de la demanda se expresa en valor absoluto, tenemos:
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Selecciona la opción correcta:
Ninguna de las opciones dadas (0.1, 0.3, 1.1, 2.3) coincide con 0.0715.
Por lo tanto, la respuesta correcta es:
e. None of the above.
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