Intangible Capital and Economic Growth
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Published macroeconomic data traditionally exclude most intangible investment from measured GDP. This situation is beginning to change, but our estimates suggest that as much as $800 billion is still excluded from U.S. published data (as of 2003), and that this leads to the exclusion of more than $3
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美国国家经济研究局创建时间：
2006-01-01
