(Related to the Apply the Concept on page 376 ) For jill Johnson's pizza restaurant, explain whether each of the following is a fixed cost or a variable cost. a. The payment she makes on her fire insurance policy b. The payment she makes to buy pizza dough c. The wages she pays her workers d. The lease payment she makes to the landlord who owns the building where her store is located e. The \(\$ 300\) -per-month payment she makes to her local newspaper for running her weekly advertisements

Short Answer

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a. The payment Jill makes on her fire insurance policy is a fixed cost. b. The payment for buying pizza dough is a variable cost. c. The wages paid to workers can be either fixed or variable depending on the specifics. d. The lease payment is a fixed cost. e. The payment for weekly advertisements is a fixed cost.

Step by step solution

01

Identify Fixed and Variable Cost for fire insurance policy

The payment Jill Johnson makes for her fire insurance policy is a fixed cost. This is because it remains the same regardless of how many pizzas are made and sold in her restaurant.
02

Identify Fixed and Variable Cost for purchase of pizza dough

The payment Jill Johnson makes to buy pizza dough is a variable cost. This depends on the quantity of pizzas she plans to produce and sell in a given time period.
03

Identify Fixed and Variable Cost for wages to workers

The wages she pays her workers could be fixed or variable costs depending on their employment status. If they are salaried employees, then it's considered a fixed cost as it doesn't change with the number of pizzas sold. If they are paid per hour or per pizza made, then it's a variable cost.
04

Identify Fixed and Variable Cost for lease payment

The lease payment she makes is a fixed cost, as it remains the same regardless of the number of pizzas sold at her restaurant.
05

Identify Fixed and Variable Cost for advertisements

The $300-per-month payment she makes to her local newspaper for running her weekly advertisements is a fixed cost because it is not affected by the volume of pizzas sold.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Cost Structure in Business
Understanding the cost structure in business is critical for any entrepreneur or manager. It refers to the distribution of different types of costs that a company incurs from its operations. The two primary categories of costs are fixed and variable. Fixed costs are expenses that remain constant regardless of the company's level of production or sales. These costs are incurred even if the business activities are at a standstill. In contrast, variable costs fluctuate with the level of production or service provision. As production increases, so do the variable costs, and they decrease when production slows down. The balance between fixed and variable costs impacts the financial stability and flexibility of a business.
Fire Insurance Policy as a Fixed Cost
A fire insurance policy typically represents a fixed cost for a business. This is because the premium paid for the insurance coverage doesn’t change with the number of goods produced or sold. For instance, Jill Johnson's pizza restaurant pays a regular amount for its fire insurance policy, preserving financial predictability in this aspect regardless of the restaurant’s sales performance. Fixed costs like this are essential to plan for since they must be paid whether the business is booming or in a slump, and they help in risk management and loss prevention.
Purchasing Raw Materials as a Variable Cost
Costs for purchasing raw materials, such as the pizza dough for Jill Johnson's restaurant, are an example of variable costs. These costs will vary in direct proportion to the restaurant’s production level. If the demand for pizzas increases, Jill will need more dough, resulting in higher expenses for raw materials. On the other hand, if demand for pizzas decreases, she will spend less on these materials. This variability is the hallmark of such costs, making them inherently different from fixed costs.
Employment Wages and Labour Costs
Labour costs can be complex, as they can be either fixed or variable. For example, if Jill's employees are salaried, their wages do not change with the number of pizzas sold, making these labour costs a fixed expense. On the other hand, if workers are paid hourly or based on production volume (like per pizza), their wages would be considered a variable cost, fluctuating with how busy the restaurant is.
Understanding the nature of labour costs is crucial for businesses to effectively manage payroll expenses in relation to their operational output.
Lease Payments
Lease payments, such as the rent Jill pays for the building where her pizza restaurant is located, is another instance of a fixed cost. The monthly lease payment is usually agreed upon in the lease contract and does not change with the level of the restaurant's activities. As a fixed cost, it lends a measure of predictability to Jill's budgeting, enabling her to plan future expenses confidently.
Advertising Expenses
While some advertising expenses can vary, many, such as monthly advertisement arrangements, are fixed costs. Jill's decision to spend $300 per month on local newspaper advertisements represents a fixed cost because it does not change with the number of pizzas she sells. Some advertising strategies might involve variable costs, but any prearranged fixed payment agreements for advertising space or time slots fall into the category of fixed expenses.

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Most popular questions from this chapter

In the ancient world, a book could be produced either on a scroll or as a codex, which was made of folded sheets glued together, something like a modern book. One scholar has estimated the following variable costs (in Greek drachmas) of the two methods: $$ \begin{array}{l|c|l} \hline \text { Scroll } & \text { Codex } \\ \hline \begin{array}{l} \text { Cost of writing } \\ \text { (wage of a scribe) } \end{array} & 11.33 \text { drachmas } & 11.33 \text { drachmas } \\ \hline \text { Cost of paper } & 16.50 \text { drachmas } & 9.25 \text { drachmas } \\ \hline \end{array} $$ Another scholar points out that a significant fixed cost was involved in producing a codex: In order to copy a codex \(\ldots\) the amount of text and the layout of each page had to be carefully calculated in advance to determine the exact number of sheets \(\ldots\) needed. No doubt, this is more time-consuming and calls for more experimentation than the production of a scroll would. But for the next copy, these calculations would be used again. a. Suppose that the fixed cost of preparing a codex was 58 drachmas and that there was no similar fixed cost for a scroll. Would an ancient book publisher who intended to sell 5 copies of a book be likely to publish it as a scroll or as a codex? What if the publisher intended to sell 10 copies? Briefly explain. b. Although most books were published as scrolls in the first century C.E., by the third century, most were published as codices. Considering only the factors mentioned in this problem, explain why this change may have taken place.

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Explain why the marginal cost curve intersects the average total cost curve at the level of output where average total cost is at a minimum.

(This problem is somewhat advanced.) Using symbols, we can write that the marginal product of labor is equal to \(\Delta Q / \Delta L .\) Marginal cost is equal to \(\Delta \mathrm{TC} / \Delta Q .\) Because fixed costs by definition don't change, marginal cost is also equal to \(\Delta \mathrm{VC} / \Delta \mathrm{Q} .\) If jill Johnson's only variable cost (VC) is labor cost, then her variable cost equals the wage multiplied by the quantity of workers hired, or \(w \mathrm{~L}\) a. If the wage Jill pays is constant, then what is \(\Delta V C\) in terms of \(w\) and \(L ?\) b. Use your answer to part (a) and the expressions given for the marginal product of labor and the marginal cost of output to find an expression for marginal cost, \(\Delta \mathrm{TC} / \Delta \mathrm{Q},\) in terms of the wage, \(w,\) and the marginal product of labor, \(\Delta Q / \Delta L\) c. Use your answer to part (b) to determine Jill's marginal cost of producing pizzas if the wage is \(\$ 750\) per week and the marginal product of labor is 150 pizzas. If the wage falls to \(\$ 600\) per week and the marginal product of labor is unchanged, what happens to Jill's marginal cost? If the wage is unchanged at \(\$ 750\) per week and the marginal product of labor rises to 250 pizzas, what happens to Jill's marginal cost?

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