"Negative Bubbles", (joint with K. Aoki)
"Understanding Japanese Household Portfolios" (joint with K. Aoki and A. Michaelides), R+R at International Economic Review
"Monetary Policy, Bank Leverage and Systemic Risk-Taking", (joint with K. Aoki and E. Martorell)
"Bank Capital Regulation in a Monetary Union", (joint with L. Falasconi, C. Mendicino and D. Supera)
"Does Financial Integration Eliminate the Diabolic Loop?", (joint with R. Cooper)