In: Operations Management
Problem 12-11
In preparing for the upcoming holiday season, Fresh Toy Company (FTC) designed a new doll called The Dougie that teaches children how to dance. The fixed cost to produce the doll is $100,000. The variable cost, which includes material, labor, and shipping costs, is $34 per doll. During the holiday selling season, FTC will sell the dolls for $42 each. If FTC overproduces the dolls, the excess dolls will be sold in January through a distributor who has agreed to pay FTC $10 per doll. Demand for new toys during the holiday selling season is extremely uncertain. Forecasts are for expected sales of 60,000 dolls with a standard deviation of 15,000. The normal probability distribution is assumed to be a good description of the demand. FTC has tentatively decided to produce 60,000 units (the same as average demand), but it wants to conduct an analysis regarding this production quantity before finalizing the decision.
a. In this case, production is 60000 and all is considered to be sold in normal scenario with zero in surplus category
So revenue from sales = 60000 X 42 = $ 2,520,000
Total cost = 100,000 + 34X60000 = $2,140,000
So total profit = $380,000
b. We can simulate demand as a normal random variable with a mean of 60,000 and a standard deviation of 15,000
Let us take some 100 such scenarios in excel
We can use Norm.inv function in excel as norm.inv (probability, mean, sd) = norm.inv (rand(), 60000,15000)
rand() gives a random no between 0 and 1 which is required to randomly assign a probability factor so that the function can arrive at a random no for demand based on mean of 60000 and SD of 15000
One we copy above formula in 100 rows of excel, please ensure to copy and pase the column as values since in excel these nos will keep changing everytime we press enter.
Now since production is 60000 and demand varies, if production is greater than demand, the excess qty will be sold as surplus else if the demand is greater than equal to production, there will be normal sales
For these 100 scenarios, the table is given below: Note that the cost is constant for each case viz., 2,140,000
The average of the last column for profit comes out as $203,243 which is significantly less than the profit calculated in part a viz., $380,000
c. We run the above simulation in excel with production of 70,000 and 50,000. The two tables are given below. The deamnd scenarios for the100 cases is kept same. only the third column of production is changes from 6000 to 7000 and then 5000
50,000-unit production quantity: $ 237,623
70,000-unit production quantity: $ 106,953
d. In addition to mean profit, what other factors should FTC consider in determining a production quantity?
The other factors to be considered are whether FTC is making enough provisions for breakdown in production owing to which there may be a shortage in meeting the demand
In this case, there will be tradeoff between shortage in meeting the demand vs selling excess quantities above demand at lower surplus value of $10
Looking at the average profit nos, between the three production quantities of 50000, 60000 and 70000, since the mean profit is the higest for the lowest qty, one should go for production of 50000