Estimation of the Heteroskedastic Canonical Contagion Model with Instrumental Variables

Autor(es)

Ribeiro, Andre L. P. ; Hotta, Luiz K.

• Tipo de documento: Artigo Científico
• Fonte: PLoS One; v. 11, n. 12 DEC 28 2016.
• Citações Web of Science: 0

Resumo

Knowledge of contagion among economies is a relevant issue in economics. The canonical model of contagion is an alternative in this case. Given the existence of endogenous variables in the model, instrumental variables can be used to decrease the bias of the OLS estimator. In the presence of heteroskedastic disturbances this paper proposes the use of conditional volatilities as instruments. Simulation is used to show that the homoscedastic and heteroskedastic estimators which use them as instruments have small bias. These estimators are preferable in comparison with the OLS estimator and their asymptotic distribution can be used to construct confidence intervals. (AU)

• Processo FAPESP: 13/22930-0 - Descoberta de preços em carteiras de arbitragem de alta dimensão
• Beneficiário: Pedro Luiz Valls Pereira
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 13/00506-1 - Séries temporais, ondaletas e análise de dados funcionais
• Beneficiário: Pedro Alberto Morettin
• Modalidade de apoio: Auxílio à Pesquisa - Temático