[R]ising prices and falling prices each have their characteristic disadvantage. The Inflation which causes the former means Injustice to individuals and to classes,—particularly to rentiers; and is therefore unfavourable to saving. The Deflation which causes falling prices means Impoverishment to labour and to enterprise by leading entrepreneurs to restrict production, in their endeavour to avoid loss to themselves; and is therefore disastrous to employment. The counterparts are, of course, also true,—namely that Deflation means Injustice to borrowers, and that Inflation leads to the over-stimulation of industrial activity. But these results are not so marked as those emphasised above, because borrowers are in a better position to protect themselves from the worst effects of Deflation than lenders are to protect themselves from those of Inflation, and because labour is in a better position to protect itself from overexertion in good times than from underemployment in bad times.
— J. M Keynes, Social Consequences of Changes in the Value of Money (1923)