There is the stretched rubber band effect that is likely to kick in at some point in the next week.

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Instead of the butterfly effect call it the band-aid effect.

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Still, it's hard to exaggerate the effect that Thor and a growing band of capitalists have had on their countryfolk.

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Look, say the pundits, at the net effect of his new lower income-tax band (starting next month), the cut in the basic rate of income tax from 23% to 22%, the changes to national insurance, the abolition of the married couples' tax allowance and the mortgage-interest allowance (all starting a year from now), the new child tax credit (from 2001), etc.

ECONOMIST: Toil and muddle

Progression pay is the effect on pay packets of public sector workers moving up a pay band.

BBC: Budget 2013: Public sector pay rise cap extended