Abstract:This paper reviews theory and evidence of the welfare effects of inflation from a costbenefit perspective. Basic models and selected empirical results are discussed. Historically, in assessing the welfare effects of inflation, the distortion of money demand played a prominent role. More recently, interactions of inflation and taxation came into focus. Growth effects of inflation as well as welfare effects of unanticipated inflation and of inflation uncertainty are also addressed. To assess the policy question whether inflation should be reduced or eliminated, the costs of disinflation play a role. Finally, the trade-off between the benefits of reducing inflation and the costs of disinflation is discussed and an overall assessment of the net welfare effects of achieving price stability is provided.
Keywords:Inflation, price stability, welfare costs and benefits, distortions, money demand, consumption allocation, tax-inflation interaction, disinflation, sacrifice ratio.
JEL-Classification: D61, E31, E41, E21, H21
Non technical summaryInflation creates and amplifies distortions in many areas of economic activity and influences virtually all decisions of economic agents. This paper provides a theoretical and empirical overview of the welfare effects of inflation from a cost-benefit perspective. Cost-benefit analysis is a technique of applied welfare analysis which is widely used to judge the social desirability of an economic project or a policy change.Understanding the welfare effects of achieving and keeping low inflation requires a combination of the traditional subjects of macroeconomics and public finance.Economic research has uncovered a number of channels through which inflation affects output and welfare. Historically, in assessing the welfare effects of inflation, the distortion of money demand played a prominent role. More recently, interactions of inflation and taxation came into focus.In this paper basic models and selected empirical results of the welfare effects of inflation are discussed. Inflation induced distortions of money demand and tax-inflation distortions of intertemporal saving and consumption allocation are reviewed, followed by brief discussions of the effects of inflation on growth, the welfare effects of unanticipated inflation and of inflation uncertainty. To assess the policy question whether inflation should be reduced or eliminated, the costs of disinflation play a role.Finally, the trade-off between the benefits of reducing inflation and the costs of disinflation is discussed. In the concluding overall assessment of the net welfare effects of achieving price stability the benefits of price stability appear to be large and permanent while the costs of disinflation are small in comparison and temporary. In combination with certain behavioral patterns (saving rates) and institutional facts (tax rules), even low inflation can generate high welfare losses.
Nicht technische Zusammenfassung