Volatile pies: Modeling compositional volatility

Author:

Eastman Abbie1,Junqueira Andrea2,Kagalwala Ali3ORCID,Philips Andrew Q.4ORCID,Whitten Guy D.3ORCID

Affiliation:

1. Department of Political Science University of Washington in St. Louis St. Louis Missouri USA

2. Department of Political Science Arkansas State University Jonesboro Arkansas USA

3. Department of Political Science Texas A&M University College Station Texas USA

4. Department of Political Science University of Colorado Boulder Boulder USA

Abstract

AbstractObjectiveThe study aims to demonstrate the utility of modeling compositional volatility in substantive domains beyond budgeting.MethodsWe show how to model compositional volatility on its own or as a part of a system of equations in which the component parts of the compositional outcome variable are also modeled.ResultsUsing data on the volatility of support for German political parties, we demonstrate the usefulness of stand‐alone models of compositional volatility. Using data on the volatility of income shares in the United States, we demonstrate the usefulness of modeling volatility together with compositional components.ConclusionThere is considerable potential for modeling compositional volatility.

Publisher

Wiley

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