信息技术的生产率悖论问题已经讨论了几十年，过去这个领域的研究主要限制在美国，但是信息技术生产率悖论在其它国家和地区的适用性如何仍然是有争议的。
Although the productivity paradox has been in the debate for decades, past research in this field has been restricted to the United States, and the external validity of the paradox is questionable.
信息技术的生产率悖论问题已经讨论了几十年，过去这个领域的研究主要限制在美国，但是信息技术生产率悖论在其它国家和地区的适用性如何仍然是有争议的。
Although the productivity paradox has been in the debate for decades, past research in this field has been restricted to the United States, and the external validity of the paradox is questionable.
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