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PETER SCHNEIDER's avatar

Hear, hear!!

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Daniel Lowenstein's avatar

There is no doubt that federal spending and the federal deficit have gone up dramatically during the period in question, but the graphs seriously exaggerate the rate of acceleration in two ways. First, and most obviously, they present nominal dollars and not dollars adjusted for inflation ("real" dollars).

Second, the graphs are linear, whereas to get a realistic sense of degree of acceleration one needs logarithmic graphs. Thus, in the first graph, each horizontal line represents spending one trillion dollars more than the next lower line, and the space dividing each pair of lines is identical. As a result, an increase from four trillion to eight trillion looks four times greater than an increase from one trillion to two trillion, even though each is a doubling. A logorithmic graph would flatten the curve, so that an increase from one trillion to two trillion and an increase from four trillion to eight trillion would show a change in height of equal size. It gives a much more accurate sense of the rate of change than a linear chart.

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