Estimation of the Heteroskedastic Canonical Contagion Model with Instrumental Variables.
Where this comes from
- Record sourced from PubMed, PMID 28030628.
- Also identified by DOI 10.1371/journal.pone.0168967 and PMC identifier 5193442.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
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.
Medical subject headings
- Data Interpretation, Statistical
- Models, Economic
- Models, Statistical