“…For example, preexisting tax distortions may have contributed to the build-up of the excesses that ultimately triggered the crisis, such as excessive risk-taking and leverage, in ‡ated asset prices, the spread of structured …nance (e.g. Keen et al, 2010, Keen and de Moji 2012, Keen et al 2013, Ceriani et al, 2012. Furthermore, the crisis highlighted serious externalities and asymmetric information problems in the …nancial system, therefore suggesting a possible role for properly-designed corrective taxes (Keen, 2010, Shakleford et al, 2010, Perotti and Suarez, 2011.…”