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The a2 Milk Company (a2MC) became the most valuable company listed on the New Zealand stock exchange in 2018 by capitalizing on a biochemical discovery related to the protein composition of cow's milk. Because many people find the A1 protein difficult to digest, and that protein may be related to other health problems (e.g., diabetes), a2MC sells dairy products containing the A2 protein only primarily in Australia and China. With sales of NZ$730 million in 2017 and a desire to grow, a2MC formed a strategic relationship with Fonterra, the world's sixth largest dairy company, in February 2018. But one month later, Nestle, the world's largest dairy company, confirmed that it had begun selling A2 infant formula in China and people speculated that it would start selling A2 products in Australia and New Zealand later in the year. a2MC's retiring CEO Geoffrey Babidge and newly appointed CEO Janyne Hrdlicka must decide how to respond to Nestle's entry. Can this successful entrant become an incumbent with a sustainable competitive advantage?

In April 2018, the De Beers Group launched a pilot project called GemFair to create a new supply of ethically and environmentally sourced diamonds from artisanal and small-scale mines (ASM) in Sierra Leone. Whether this project would yield a meaningful supply of rough diamonds for De Beers, improve its ability to track diamonds accurately from African mines to consumers around the world, and simultaneously improve both the working conditions in mines and the prices received by local miners remained to be seen. This case is intended to be used in conjunction with and to follow another HBS case: The De Beers Group: Exploring the Diamond Reselling Opportunity (HBS #717-430).

This brief note explores the critical issues in modern anti-trust policy.

In 2001 Accenture took the bold step of separating from its parent, Arthur Andersen. The new firm that emerged had a bright future ahead, but it also faced the challenge of building a new IT infrastructure that could support a global organization that consults on leading-edge technology. Accenture's CIO at the time, Ed Schreck, knew that becoming a master of your own trade was not an easy task. Frank Modruson, Schreck's successor and the person responsible for carrying forward the IT transformation challenge from 2002 on, had ambitious plans for the new technology infrastructure that was to replace Arthur Andersen's legacy systems. Difficult decisions had to be made. Should the firm continue with a decentralized approach to managing technology platforms, in which each country chooses its own IT platforms and has autonomy to run them? Or should the firm take a mixed approach, in which the same standard applications would run throughout the enterprise but would be managed independently by individual offices? Or should Accenture espouse a "one-firm" approach and boldly shoot for a centralized implementation of its most critical systems, with all its offices interconnected on the same "instance" of a software platform? Furthermore, should the firm retain its traditional conception of IT as cost center, or should it migrate to a scheme that recognizes IT as a service provision center that generates measurable value for the organization? These questions and many others drove Accenture's CIO team to undertake one of the most remarkable IT transformations in a global organization in recent years.