在刚刚过去的前半学期（1月19日到3月12日）上了两门必修课，其中 Operations 这门课几乎是人人喜欢，我想主要是因为这门课的老师实在是招人喜欢。
教授
Operations 这门课的老师是年轻的 Prof. Terry Taylor:
Taylor 教授是在麦肯锡做过两年后才进入学术界的，在斯坦福大学拿到博士学位后，主要在哥伦比亚大学任教过六年，2007年的时候来到伯克利：
B.S., Industrial Engineering, Stanford University, 1994
McKinsey & Company, Business Analyst, 1994 – 1996
Ph.D., Management Science & Engineering, Stanford University, 2000
Stanford University, Graduate School of Business, Global Supply Chain Management Forum, Director of Research, 2000 – 2001
Columbia University, Graduate School of Business, Associate/Assistant Professor, 2001 – 2007
University of California, Berkeley, Haas School of Business, Associate Professor, 2007 – present
我听一位二年级的同学说，他们以前跟 Taylor 教授聊过，问他为什么在麦肯锡做的好好的，后来要去学术界了，Taylor 教授回答说在麦肯锡做事，做完一个项目就结束了，满足不了他追根问底的求知欲（intellectual curiosity），于是他想去学术界把 operations 的问题弄明白和清楚。
第一节 Operations 课就让我震了一下，因为 Taylor 教授实在是我见过最井井有条（ organized）的人。光看他写的课程大纲，别的课的大纲一般只是粗略的告诉学生每节课要上什么内容，他这大纲很仔细的告诉每节课前你要准备什么，课后你要看什么，哪节课你要带计算器，哪节课你要带电脑…… 连期末考试的地点，由于不是在商学院的楼里考试，他都给你画好地图！他把一切细节都安排好了，让人有一种特别好的享受VIP服务的感觉，呵呵。结论是：Taylor 教授真不愧是做 Operations 的！
Taylor 教授人也长得精神帅气（听说很多女生迷他，哈哈），每次都精神抖擞的西装革履、正装衬衫领带一丝不苟的来上课，他人又非常聪明，每次 Operations 课堂讨论气氛都很活跃…… 上他的课真是享受。
也难怪他无论在 Columbia 还是 Berkeley 教书都能拿 teaching 的奖：
Earl F. Cheit Award for Excellence in Teaching (Full-Time MBA Program), 2009
Earl F. Cheit Award for Excellence in Teaching (Full-Time MBA Program), Honorable Mention, 2008
Columbia Business School Dean’s Award for Teaching Excellence in a Core Course, 2003
教学方式
案例教学和课堂授课相结合，教授提供了不少case 让我们读，在课堂上讨论这些 case，还有一个模拟游戏.
内容
这课教了这些内容：
- Part I Physics and Economics of Production and Service Processes
- Process Analysis:
- Little’s Law: inventory = flow rate x flow time.
- Bottleneck determines system capacity.
- Batch production: economies of scale in production (setup costs) vs. inventory costs [EOQ model].
- Variability in Processes
- Variability leads to congestion and delay even when have more capacity than average demand.
- Queuing models of service systems.
- Part II Supply Chain Management
- Critical-fractile Approach (Newsvendor Model)
- Value of delaying final production decisions by postponement (delayed differentiation) or using reactive capacity.
- If can’t adjust supply (hotel rooms, airplane seats), adjust demand through revenue management: booking limits on discounted fares, overbooking.
Taylor 教授多次反复强调一些重要的原则：
Operations Principles
- System performance is determined by the limiting resource (system capacity is the bottleneck capacity)
- Bottleneck capacity determines system capacity.
- Bottleneck may shift… when relieve bottleneck, or when product mix changes.
- Failure of one resource threatens overall system.
- Process choices should be integrated, consistent, self-reinforcing
- Power of consistent, self-reinforcing decisions.
- Risk in cherry-picking elements of successful operational models without considering interrelationships.
- Uncertainty and variability are painful…
- Performance degrades rapidly as utilization approaches 100%.
- Performance degrades with increased variability.
- Demand uncertainty makes managing supply chains challenging. Information distortion grows as move up supply chain away from end customer [Bullwhip Effect].
- …but proper actions mitigate this pain
- Build in slack/safety capacity.
- Eliminate the variability you can, schedule demand you can control, and accommodate the rest.
- Make intelligent gambles using critical-fractile approach.
- Powerful “pooling efficiencies” are obtained by taking advantage of “statistical economies of scale”.
如同上学期在最后一堂 Marketing 课跟 Rashi Glazer 教授告别的时候一样，在最后一堂 Operations 课跟 Taylor 教授告别的时候，我真心实意的鼓掌了很长很长时间。
非常棒的一门 Operations 课，非常棒的 Terry Taylor 教授。
