If we compare the real gross domestic product, real GDP, of the United States of 1980 ($6.450 billion in 2009), with the estimated real GDP for 2019 ($18.397 billion in 2009) we see that the estimated figure for 2019 is 2.85 times larger than that observed in 1980.

1. How can we interpret this phenomenon?

2. Is it true that, on average, families in this country would have by the end of 2019, 2.85 times more goods and services than in 1980?

3. Can we say that the standard of living would have practically multiplied by 2.85 during the period 1980-2019?

4. Is it true that economic welfare in the United States would have multiplied by 2.85?

3. Will your residents be 2.85 times happier in 2019 than we were in 1980?