The Manufacturer of Beanie Baby Dolls Used Quarterly Price Data $P _ { t } = a + b t + c _ { 1 } D 1 _ { t } + c _ { 2 } D 2 _ { t } + c _ { 3 } D 3 _ { t }$

question 20

Multiple Choice

The manufacturer of Beanie Baby dolls used quarterly price data for 2012I - 2020IV (t = 1,...,36) and the regression equation $P _ { t } = a + b t + c _ { 1 } D 1 _ { t } + c _ { 2 } D 2 _ { t } + c _ { 3 } D 3 _ { t }$ to forecast doll prices in the year 2021. $P _ { t }$ is the quarterly price of dolls,and $D 1 _ { t } , D 2 _ { t }$ and $D 3 _ { t }$ are dummy variables for quarters I,II,and III,respectively. What is the estimated intercept of the trend line in the 4th quarter?

• A)22.8
• B)16
• C)18
• D)20
• E)none of the above

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Definitions:

Marginal Cost

The cost incurred by producing one additional unit of a good or service.

Equilibrium Price

The pricing level where goods supplied and goods demanded by consumers are equal.

Government Interference

Actions by a government that affect the market, potentially through regulations, taxes, subsidies, or direct control of industries.

Marginal Cost

Marginal cost is the cost incurred by producing one additional unit of a product or service, often considered for decision-making regarding production levels.