Fixed Reproducible Tangible Wealth in the United States, 1925-94 (August 1999).
There is a lot of tangible wealth information for the united states between 1925 and 1994.
mnli hypothesis: There is a lot of tangible wealth information for the united states between 1925 and 1994. premise: Fixed Reproducible Tangible Wealth in the United States, 1925-94 (August 1999).