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We use lasso methods to shrink, select and estimate the network linking the publicly-traded subset of the world's top …
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We represent the dynamic relation among variables in vector autoregressive (VAR) models as directed graphs. Based on these graphs, we identify so-called strongly connected components (SCCs). Using this graphical representation, we consider the problem of variable selection. We use the relations...
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) and studies the properties of the Lasso and adaptive Lasso as estimators of this model. The parameters of the model are … finite sample properties of the Lasso by deriving upper bounds on the estimation and prediction errors that are valid with … of non zero increments grows slower than √T . By simulation experiments we investigate the properties of the Lasso and …
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