Reconsider the Special Products Company problem presented in Section 1.2.
Although the company is well qualified to do most of the work in producing the iWatch, it currently lacks much expertise in one key area, namely, developing and producing a miniature camera to be embedded into the iWatch. Therefore, management now is considering contracting out this part of the job to another company that has this expertise. If this were done, the Special Products Company would reduce its research-and-development cost to $5 million, as well as reduce its marginal production cost to $750. However, the Special Products Company also would pay this other company $500 for each miniature camera and so would incur a total marginal cost of $1,250 (including its payment to the other company) while still obtaining revenue of $2,000 for each watch produced and sold. However, if the company does all the production itself, all the data presented in Section 1.2 still apply. After obtaining an analysis of the sales potential, management believes that 30,000 watches can be sold.
Management now wants to determine whether the make option (do all the development and production internally) or the buy option (contract out the development and production of the miniature cameras) is better.
a. Use a spreadsheet to display and analyze the buy option. Show the relevant data and financial output, including the total profit that would be obtained by producing and selling 30,000 watches.
b. Figure 1.3 shows the analysis for the make option. Compare these results with those from part a to determine which option (make or buy) appears to be better.
FIGURE 1.3
An expansion of the spreadsheet in Figure 1.1 that uses the solution for the mathematical model to calculate the break-even point.

c. Another way to compare these two options is to find a break-even point for the production and sales volume, below which the buy option is better and above which the make option is better. Begin this process by developing an expression for the difference in profit between the make and buy options in terms of the number of grandfather clocks to produce for sale. Thus, this expression should give the incremental profit from choosing the make option rather than the buy option, where this incremental profit is 0 if 0 watches are produced but otherwise is negative below the break-even point and positive above the break-even point. Using this expression as the objective function, state the overall mathematical model (including constraints) for the problem of determining whether to choose the make option and, if so, how many units of the LCD display (one per watch) to produce.
d. Use a graphical procedure to find the break-even point described in part c.
e. Use an algebraic procedure to find the break-even point described in part c.
f. Use a spreadsheet model to find the break-even point described in part c. What is the conclusion about what the company should do?

Special Products Co. Break-Even Analysis 3 Data Results Unit Revenue $2,000 $60,000,000 $10,000,000 Total Revenue Fixed Cost $10,000,000 Total Fixed Cost Marginal Cost $1,000 Total Variable Cost $30,000,000 Profit (Loss) $20,000,000 30,000 Sales Forecast 8. Production Quantity Break-Even Point 30,000 10,000 Range Name Cell Results BreakEvenPoint F9 Total Revenue =UnitRevenue MIN(SalesForecast, ProductionQuantity) 4 FixedCost C5 MarginalCost ProductionQuantity Profit C6 Total Fixed Cost =IF(ProductionQuantity > 0, FixedCost, 0) Total Variable Cost =MarginalCost ProductionQuantity Profit (Loss) =TotalRevenue - (TotalFixedCost + TotalVariableCost) C9 6. F7 C7 SalesForecast TotalFixedCost 8. F5 TotalRevenue F4 Break-Even Point =FixedCost/(UnitRevenue - MarginalCost) TotalVariableCost F6 UnitRevenue C4