Análise do comportamento dos preços de distribuição de Gás Liquefeito de Petróleo (GLP) no estado do Pará

Abstract

This article aimed to analyze the behavior of LPG distribution prices, in the State of Pará, from July 2001 to August 2020, a market already condemned by the Administrative Council for Economic Defense (CADE). For this purpose, the price variation coefficient was calculated, as suggested by Abrantes-Metz et al. (2006), and estimated price volatility models, as proposed by Bolotova, Connor and Miller (2008). The results suggested that, during the cartel period, the variance of LPG prices was smaller than in the non- cartel periods. In the post-cartel collapse period, the price variation coefficient increased. Price volatility models suggested that, during the cartel period, the average LPG distribution price increased, and its variance decreased. The results allowed corroborating the efficiency of the selected filters for applications in LPG markets.