A number of recent headline-grabbing announcements of divestments and split-ups by companies such as HP (spinning off its PC and printer businesses), GE (the sale of its appliances business to Electrolux), Bayer (the flotation of its MaterialScience chemicals business), and Royal Philips (its separation into two autonomous companies, Lighting and HealthTech) are putting the spotlight again on the phenomenon of “core shifting”: how a company, through a sustained process of acquiring and divesting assets, changes the mix of its business portfolio and thus purposefully shifts the core of its activities.