Ontology highlight
ABSTRACT:
SUBMITTER: Ribeiro AL
PROVIDER: S-EPMC5193442 | biostudies-literature | 2016
REPOSITORIES: biostudies-literature
PloS one 20161228 12
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 instrum ...[more]