Вопрос
6. Given the demand function as Q_(1)=b_(0)-b_(1)P Derive the Average Revenue and Marginal Revenue functions and compare the two (5 marks)
Решения
4.2
(231 Голоса)
Дарья
Экспертная проверка
элита · Репетитор 8 лет
Ответ
To derive the Average Revenue (AR) and Marginal Revenue (MR) functions from the given demand function
, we need to follow these steps:1. **Determine the Total Revenue (TR) function:** - Total Revenue is calculated as the product of price (P) and quantity (Q). - Given
, the Total Revenue function is:
- Simplifying this, we get:
2. **Derive the Average Revenue (AR) function:** - Average Revenue is the Total Revenue divided by the quantity. - Using the Total Revenue function
, we have:
3. **Derive the Marginal Revenue (MR) function:** - Marginal Revenue is the additional revenue from selling one more unit of the good. - To find MR, we take the derivative of the Total Revenue function with respect to quantity (Q).
- Given
, we need to express
in terms of
. From the demand function
, we solve for
:
- Substitute
into the Total Revenue function:
- Simplify the expression:
- Differentiate
with respect to
to find
:
4. **Compare Average Revenue (AR) and Marginal Revenue (MR):** - The Average Revenue function is:
- The Marginal Revenue function is:
- To compare the two, we can express
in terms of
from the demand function:
- Substitute
into the AR function: \[ AR = \frac{b_0 \left(\frac{b_0 - Q_1}{b_1}\right) - b_1 \left(\frac{b_0 - Q_1}{b_1}\right)^2}{b_0 - b_1 \left(\frac{b_0 - Q