求一篇英文原文...答对再加分,快

The concept of core competencies was developed in the management field. C.K. Prahalad and Gary Hamel introduced the concept in a 1990 Harvard Business Review article. I wrote that a core competency is "an area of specialized expertise that is the result of harmonizing complex streams of technology and work activity." As an example they gave Honda's expertise in engines. Honda was able to exploit this core competency to develop a variety of quality products from lawn mowers and snow blowers to trucks and automobiles. To take an example from the automotive industry, it has been claimed that Volvo’s core competency is safety. This however is perhaps the end result of their competency in terms of customer benefit. Their core competency might be more about their ability to source and design high protection components, or to research and respond to market demands concerning safety.

Ever since Prahalad and Hamel introduced the term in the 1990’s many researchers ha