下面所引用的[美国]非物质积累的估计数,无论从总体上来说还是从各个部分来说,都带有示意性质,并不十分精确。1977年,用于非物质形式社会财富积累的全部经费为2,360亿美元(按现价计算),大致相当于美国经济中私营企业和国营部门两者对生产性固定基金的投资之和。这一数字包括科研与发展经费(410亿美元)、教育经费(1,180亿美元)和 The estimates of the [United States] immaterial accumulation quoted below are indicative and not very precise in general terms or in various parts. The total funding for the accumulation of wealth in the intangible form of society in 1977 amounted to $ 236 billion (at current prices), roughly equivalent to the sum of the investment in productive fixed funds in both the private and public sectors of the United States economy. This figure includes research and development ($ 41 billion), education ($ 118 billion) and