{"title":"Output-inflation trade-offs and the optimal inflation rate","authors":"Takushi Kurozumi , Willem Van Zandweghe","doi":"10.1016/j.jedc.2024.104874","DOIUrl":null,"url":null,"abstract":"<div><p>We show that a positive superelasticity of demand, often referred to as “Marshall's Second Law of Demand,” is a new push factor of optimal inflation in staggered price models. The positive superelasticity alters the trade-offs between output and inflation in the models. It allows higher trend inflation to steepen the slope of a model-based Phillips curve and lower the steady-state average markup, and thus reduces the inflation-related weight in a model-based welfare function for higher trend inflation and the steady-state welfare cost of higher trend inflation. Consequently, the positive superelasticity can make the optimal trend inflation rate positive and lessen the welfare difference between inflation targets of 2 percent and 4 percent.</p></div>","PeriodicalId":48314,"journal":{"name":"Journal of Economic Dynamics & Control","volume":"164 ","pages":"Article 104874"},"PeriodicalIF":1.9000,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Economic Dynamics & Control","FirstCategoryId":"96","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0165188924000666","RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ECONOMICS","Score":null,"Total":0}
引用次数: 0
Abstract
We show that a positive superelasticity of demand, often referred to as “Marshall's Second Law of Demand,” is a new push factor of optimal inflation in staggered price models. The positive superelasticity alters the trade-offs between output and inflation in the models. It allows higher trend inflation to steepen the slope of a model-based Phillips curve and lower the steady-state average markup, and thus reduces the inflation-related weight in a model-based welfare function for higher trend inflation and the steady-state welfare cost of higher trend inflation. Consequently, the positive superelasticity can make the optimal trend inflation rate positive and lessen the welfare difference between inflation targets of 2 percent and 4 percent.
期刊介绍:
The journal provides an outlet for publication of research concerning all theoretical and empirical aspects of economic dynamics and control as well as the development and use of computational methods in economics and finance. Contributions regarding computational methods may include, but are not restricted to, artificial intelligence, databases, decision support systems, genetic algorithms, modelling languages, neural networks, numerical algorithms for optimization, control and equilibria, parallel computing and qualitative reasoning.