The repetition of crisis events (the Great Financial Crisis in 2007, the euro area
sovereign debt crisis, the recent shock caused by the Covid-19 pandemic) and
the fragilities in the nancial systems (over- indebted sovereigns, high real estate
prices, volatile capital ows…) are sources of concern not only for the pub-
lic but also for nance professionals and economists. Faced with this challenge,
“Preparing for the next nancial crisis” goes back to the fundamentals: what do
theory and empirical observations have to tell us about the causes and the con-
sequences of nancial instability? To which extent do economic policies, which
have been implemented, and research, which has developed extremely rapidly in
recent years, help preserve