Core competencies and focus are now the mantras of corporate strategists in Western economies. But while managers in the West have dismantled many conglomerates assembled in the 1960s and 1970s, the large, diversified business group remains the dominant form of enterprise throughout most emerging markets. Some groups operate as holding companies with full ownership in many enterprises, others are collections of publicly traded companies, but all have some degree of central control.

A version of this article appeared in the July–August 1997 issue of Harvard Business Review.