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We also show that variance decompositions define weighted, directed networks, so that our connectedness measures are intimately-related to key measures of connectedness used in the network literature. Building on these insights, we track both average and daily time-varying connectedness of major U.S. financial institutions' stock return volatilities in recent years, including during the financial crisis of 2007-2008."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382825893296040321","@type":"Researcher","foaf:name":[{"@value":"Francis X. 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