Question: 26For more information about the differences between income and consumption taxes and the current tax treatment of saving and investment, see Tax Potential Impact of Alternative Taxes on Taxpayers and Administrators (GAO/GGD-98-37, January 14, 1998), pp. 55-77.
The "Tax Potential Impact of Alternative Taxes on Taxpayers and Administrators" book explains more about the differences between income and consumption taxes.

Answer: yes

Question: Still, both cases show that in the buzzing, blooming confusion that is the economy it is all too easy for those who would make economic predictions to be right for the wrong reasons, and conversely.
They had no idea how but they ended up being right.

Answer: no

Question: At the conclusion of each principle, we provide a case study to describe the principle in practice at one of the organizations we visited, as well as strategies to consider when implementing the principle.
The end of the principles they included a case study.

Answer:
yes