Identification with external instruments in structural VARs

Silvia Miranda Agrippino () and Giovanni Ricco ()
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Silvia Miranda Agrippino: Bank of England, Postal: Bank of England, Threadneedle Street, London, EC2R 8AH

No 973, Bank of England working papers from Bank of England

Abstract: IV methods have become the leading approach to identify the effects of macroeconomic shocks. Conditions for identification generally involve all the shocks in the VAR even when only a subset of them is of interest. This paper provides more general conditions that only involve the shocks of interest and the properties of the instrument of choice. We introduce a heuristic and a formal test to guide the specification of the empirical models, and provide formulas for the bias when the conditions are violated. We apply our results to the study of the transmission of conventional and unconventional monetary policy shocks.

Keywords: Identification with external instruments; structural VAR; invertibility; monetary policy shocks (search for similar items in EconPapers)
JEL-codes: C32 C36 E30 E52 (search for similar items in EconPapers)
Pages: 45 pages
Date: 2022-04-14
New Economics Papers: this item is included in nep-cba, nep-ecm, nep-ets and nep-mac
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Journal Article: Identification with External Instruments in Structural VARs (2023)
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Persistent link: https://EconPapers.repec.org/RePEc:boe:boeewp:0973

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