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Production and Inventory Management Chapter 11

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Why It Is Important to Understand the Cost Relationships in Production and Inventory Management They affect the economic efficiency (profits) of the firm. An understanding of these relationships helps managers make more effective production decisions. As a result, managers are better able to meet their financial objectives

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Management Information Systems MIS provides 1.Accurate and timely production and cost information on all phases of the business 2.Data in the proper form needed for decision making 3.Accounting information that will allow fast, accurate development of business financial documents 4.A means for efficiently and effectively monitoring and controlling business production costs

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Cost Concepts Cost: what is given up to acquire a good or service Opportunity cost: the return (as measured by the highest value) that is given up in a foregone use Implicit cost: costs that do not include cash payments but need to be included in the calculation of the total cost of product

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Cost Concepts Controllable and Uncontrollable Costs Incremental, Avoidable, and Sunk Costs Total Cost = Total Fixed Cost + Total Variable Costs Total Fixed Cost (TFC) Total Variable Cost (TVC) Total Cost (TC)

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The Costs of Production

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The Contribution Concept Contribution equals selling price/unit minus variable cost/unit The contribution per unit is used first to pay fixed costs and later profits Selling Price/Unit = Total Cost/Unit + Profit/Unit Total Cost/Unit = Variable Cost/Unit + Fixed Cost/Unit Selling Price/Unit – Variable Cost/Unit = Fixed Cost/Unit + Profit/Unit

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Using the Contribution Concept to Establish the Selling Price of a New Product Total Variable Costs Per Unit = [1 – Contribution Margin Percentage] × [Selling Price Per Unit] For example, $120 = [1 – 0.40] × Selling Price/ Bag $120 0.60 = Selling Price per Bag $200 = Selling Price per Bag If the contribution/unit is 40% of the selling price/unit, the selling price/unit would be:

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The Shutdown Point Short-term versus Long-term Pricing In the short term, a firm with idle capacity can take a job where the price does not cover all the total cost as long as the contribution is positive (P – AVC > 0). If the contribution is negative (P – AVC < 0) the firm is better off shutting down. Over the long term, all costs must be covered.

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Break-Even Analysis Break-even analysis helps managers find the combination of costs, output, and selling price that permits the firm to break even, with no profits and losses Selling Price OutputCosts

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Calculating the Break-Even Point in Units The break-even point is calculated from the profit equation when profit is zero. Profit = 0 = Total Revenue – Total Cost 0 = Total Revenue – TVC/Unit – TFC0 = P × Y – VC × Y – TFC = (P – VC) Y – TFC TFC = (P – VC) Y TFC (P – VC) Y = = Break-Even Point in Units

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Calculating the Break-Even Point in Dollars Where:BEP$= Break-Even Point in Dollars TFC = Total Fixed Costs CMP = Contribution Margin Percentage TFC CMP BEP$ = For example, BEP$ = $750,000 0.40 BEP$ = $1,875,000 = The Break-Even Point in Dollars

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Meeting a Profit as a Percentage of Sales Objective Using Break-Even Analysis TFC (CMP – RPP) BEP$ = For example, BEP$ = (0.40 – 0.10) $750,000 = $2,500,000 (or 20,000 bags at $125 per bag) RPP = Required Profit Percentage

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Evaluating Changes in Fixed Costs Using Break-Even Analysis Change in Fixed Costs Contribution Margin Percentage = Minimum Change in Dollar Sales Needed to Break Even for the Change in Fixed Costs For example, $1.00 0.40 = $2.50 = the minimum increase in dollar sales needed to break even for each new dollar spent on fixed costs

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Determining a Selling Price Using Break-Even Analysis Selling Price/Unit = Contribution + Variable Cost/Unit TFC Contribution = Y TFC Y = Contribution Contribution can be determined by rearranging the terms of the break-even equation If Variable Cost/Unit is known, all that is needed is Contribution

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Inventory Management Reasons to hold inventory 1.Matching supply with demand 2.Prevent stockouts 3.Lower purchasing costs Reasons not to hold inventory 1.High maintenance cost 2.High protection cost 3.Depreciation and obsolescence 4.Taxes

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Impact of Inventory on Profits Value of Inventory = $100,000 Inventory Carrying Cost = $25,000 (25 percent) Each $1,000 reduction in Inventory = + $250 Profits Each $1,000 reduction in Inventory = +$5,000 in Sales Why It Pays to Keep Inventories Low!

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The Basic Inventory Management Model The total cost of inventory (TC) equals the sum of ordering costs (OC) and carrying costs (CC) TC = CC + OC Managers goal is to minimize total cost. A manager needs to determine: 1.Economic Order Quantity (EOQ): the number of items to buy in each order that will minimize total cost, and 2.Reorder Point (ROP): when to reorder to minimize the chances of stockouts

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The Basic Inventory Model

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Discussion Questions 1.Explain why an agribusiness manager needs to understand production and inventory management. Give two examples of situations in which cost management made a difference. 2.Describe the relationship between the firms accounting system and its management information system. Give a definition for each. Explain which one is most important to management. 3.What is opportunity cost? Is it relevant to business decision making? Explain your answer. Give an example that shows its impact. 4.Describe the relationship between implicit and explicit costs. Describe how they are measured. Explain their role in production and pricing decisions in an agribusiness. Describe, using an example, how failure to properly account for them can get an agribusiness into trouble.

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5.Explain how agribusiness managers use avoidable and sunk costs in their decision making. Why is this decision-making process called incremental analysis? Define economic efficiency and show with an example how incremental analysis helps firms increase their economic efficiency. 6.Draw a simple graph showing the total cost, fixed costs, and variable costs as production increases. Explain why each line looks the way it does. 7.Define the term contribution as used in this chapter. Give an example of how it could be used to price a new product.

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8.Explain why a firm would take a job that does not give it a chance to make a profit. Explain when it would not accept this opportunity. Use a numerical example to explain why it is important for managers to know the difference between the two. 9.Using the break-even equations, describe and explain the relationship between cost, selling price, and output. Use a numerical example to make your points. 10.Describe and explain the importance of good inventory management of the firms overall objective of maximizing its long-term profits. What is the role of supply chain management and information technology in this process? Use a numerical example to make your points

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