"The culprit in the misestimation was the widely castigated BD (birth/death) adjustment which projects the net jobs gained or lost due to the closing of old businesses and the opening of new ones based on the historical records of the past few years."
"It is almost never caused by misestimation of the cost of the planned, known work, but rather surprises that result in a significant amount of unplanned, unexpected work that goes beyond the allocated cost reserves."
"A neutral fiscal policy would undo the disequilibrating effects of such misestimation: it would gear people's expectations of over-life tax burdens to what will be required to pay for public programs; thus it would tend to tax-finance public outlays other than for projects that will charge user fees."