Case studies

The Joyoung brand was launched in 1994 when a group of recent college graduates invented the world's first automatic hot soymilk-maker home appliance. After some ups and downs, the Joyoung manufacturer founded the Shandong Joyoung Electric Appliances Co., Ltd. in 2002. It was further reorganized to the current Joyoung Company Limited in September 2007. Joyoung's sales grew rapidly from RMB 6 million in 1994 to 120 million in 1999, and this trend has continued into the new century. By the first quarter in 2006, the signature product of Joyoung—the soymilk makers—alone have already surpassed the sales by Philips Home Appliances in the Chinese market. Contrary to its current success, however, Joyoung Soymilk Maker's launch did not go smoothly. When the first model of the automatic soymilk maker was introducted in 1994, people had no idea what this new creature was supposed to do. The first 2,000 units of Joyoung products remaintroducedined stacked in storage for months. Joyoung then decided to conduct some marketing research. Joyoung's repositioning strategies and new product developments based on their marketing research have been evidently successful, and they have defined a new product category in China and in the world.

California telecommunications company Wireworld is considering an acquisition of Nusantara Communications, a subsidiary of Indonesian conglomerate Bakrie & Brothers. Nusantara had invested $50 million in developing the advanced rural telephone system, which had the potential to provide much-needed telecommunications services to the mostly rural Indonesian population. If if were exported, the worldwide market for this product in the next five years was projected to be in the billions. Should Wireworld acquire this small company halfway around the world? Was it prepared to enter the Indonesian marketplace and beyond?

Students will examine a variety of data, including financial projections, in order to decide whether acquiring Nusantara will add value to Wireworld.

This case is used in Darden's first-year core operations class as part of a module on supply chain management. The Musictoday company provided online retailing services for such clients as the Dave Matthews Band and the Rolling Stones. But the lack of a formal inventory-management process had Musictoday concerned about future stockouts that would result in lost sales. This case covers the basics of safety stock within the context of a periodic review system. It introduces students to the periodic review system and provides them with an opportunity to link the optimal review period with the EOQ concept.

Assumes an understanding of statistical process control and focuses on highlighting the usefulness of Six Sigma quality. Focuses on the issue of a worn bearing at a tire manufacturer leading to a mean shift (while producing defectives). Shows how a Six Sigma process would quickly detect the mean shift while producing fewer defectives.

To introduce the methodology of statistical process control and to illustrate the value of Six Sigma.

Supplements the (A) case.

Illustrates the challenges most managers face in prioritizing their time in the workplace environment. Looks at “a day in the life” of a printing plant manager who, with well-intentioned goals for the day, is frustrated by numerous interruptions.

To serve as a starting point for a discussion on how to manage one's time, responsibilities, and employees to the greatest effect.

Supplements the (A) case.

In 2012 several retailers, including Amazon and Walmart, experimented with same-day delivery. Home delivery of pizzas had been a very successful model in the United States and had been copied all over the world. In contrast, home delivery attempts by companies like Kozmo and Urbanfetch had failed and both companies went bankrupt. The goal of this case is to build a framework that helps students identify the factors that influence the success or failure of home delivery models.

After analyzing and discussing the case, students should be able to:

• Build a basic framework identifying supply chain drivers that are influenced by a firm's decision to offer same-day home delivery

• Understand the tradeoffs that influence the success of a same-day home delivery model

• Identify qualitative factors to be considered when deciding between non-U.S. facility locations, including transportation time variability, consumer perceptions, and cultural differences

Build a basic framework identifying supply chain drivers that are influenced by a firm's decision to offer same-day home delivery

Understand the tradeoffs that influence the success of a same-day home delivery model

Identify qualitative factors to be considered when deciding between non-U.S. facility locations, including transportation time variability, consumer perceptions, and cultural differences

Provides a narrative description of the price war in the U.S. airline industry that broke out in Spring 1992.

To use in competitive strategy or microeconomics classes to explore the root causes of price wars.

Pancho’s Burritos is a high-end fast-food restaurant located in Charlottesville, Virginia. Due to a recent surge in customers, the lines at the restaurant during peak hours are becoming very long and causing excessive customer waiting. To improve current customer wait times and plan for future growth requirements, Francisco “Pancho” Escoba, the proprietor, wants to get a better understanding of the current operational capacity. The key decision Escoba must make is how to redesign his burrito-making process to increase the capacity and reduce customer wait time.

Suitable for an undergraduate or MBA course, the case can be used in an introductory operations course to teach capacity analysis and queuing. The case provides a relatable and understandable setting for students without an operations background to gain a better grasp of basic course concepts and illustrates how interactions between capacity and queuing affect one another. As an exam or review case it works well because it contains standard process calculations that all students should know how to perform.