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Agregação de dinâmicas heterogêneas, acurácia da meia-vida e o enigma da PPC: evidência para cidades brasileiras

Abstract

The PPP puzzle is named as one of six major puzzles in international macroeconomics. IMRR (2005a) point out to the aggregation bias of price with heterogeneous adjustment dynamics as a solution to the puzzle. This paper investigates whether this result is supported for Brazilian cities data using a dynamic CCEMG estimator with half-panel jackknife bias correction to mitigate the small sample time series bias proposed by Chudik and Pesaran (2015)Chudik, A.; Pesaran, M. H. 2015. “Common Correlated Effects Estimation of Heterogeneous Dynamic Panel Data Models with Weakly Exogenous Regressors.” Journal of Econometrics 188, no.2: 393-420.. The results corroborate the IMRR’s (2005a) evidence, with a median half-life of 13.5 months.

Keywords:
Aggregation Bias; Half-life; PPP Puzzle

Departamento de Economia; Faculdade de Economia, Administração, Contabilidade e Atuária da Universidade de São Paulo (FEA-USP) Av. Prof. Luciano Gualberto, 908 - FEA 01 - Cid. Universitária, CEP: 05508-010 - São Paulo/SP - Brasil, Tel.: (55 11) 3091-5803/5947 - São Paulo - SP - Brazil
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