Bacchiocchi, Emanuele; Bastianin, Andrea; Kitagawa, Toru; … - 2024
This paper presents new results on the identification of heteroskedastic structural vector autoregressive (HSVAR …) models. Point identification of HSVAR models fails when some shifts in the variances of the structural shocks are suspected … restrictions can recover point identification in HSVAR models even in the absence of heterogeneous variance shifts. We derive the …