حل تمامی مسائل فصل نهم کتاب زنجیره تامین چوپرا (ویرایش سوم)

حل المسائل فصل نهم کتاب زنجیره تامین چوپرا (ویرایش سوم)، فایل ورد + اکسل

بخشی از سوالات این فصل را در ادامه مشاهده می کنید. (برای دسترسی به پاسخ ها، فایل را خریداری نمایید). تمامی تمرین های فصل نهم پوشش داده شده اند.

1. Lavare, located in the Chicago suburbs, is a major manufacturer of stainless steel sinks. Lavare is in the middle of the demand and supply planning exercise for the coming year. Anticipated monthly demand from distributors over the 12 months is shown in Table 9-14. Capacity at Lavare is governed by the number of machine operators it hires. The firm works 20 days a month, with a regular operating shift of eight hours per day. Any time beyond that is considered overtime. Regular-time pay is $15 per employee and overtime is $22 per nour. Overtime is limited to 20 hours per month per employee. The plant currently has 250 employees. Each sink requires two hours of labor input. It costs $3 to carry a sink in inventory for a month. Material cost per sink is $40. Sinks are sold to distributors at a price of $125 each. We assume that no stockouts are allowed.
2. Consider the data for Lavare in Exercise 1. We now assume that Lavare can change the size of the workforce by laying off or hiring employees. Hiring a new employee incurs a cost of $1,000, while laying off an employee incurs a layoff cost of $2,000.
3. Return to the data for Lavare in Exercise 1. Now assume that a third party has offered to produce sinks at $74 per unit. How does this change affect the optimal production plan without a promotion? How does this change affect the optimal timing of a promotion? Explain the changes.
4. Jumbo manufactures bicycles for all ages. The demand forecast for the coming year is as shown in Table 9-15. Capacity at Jumbo is limited by the number of employees it hires. Employees are paid $10 per hour for regular time and $15 per hour for overtime. Each bicycle requires two
   hours of work from one employee. The pl nt works 20 days a month and eight hours a day of regular time. Overtime is restricted to a maximum of 20 hours per employee per month. Jumbo currently has 250 employees and prefers not to change that number.