The boom brought some transitory prosperity even to those not directly involved in construction or property; the bust threw many out of work and imposed losses on many Irish people other than those that came through the losses on bank loans. And of course a sizable part of the economic downturn 2008–12 was not home-grown but attributable to the global financial crisis.
In order to get an overall cost to Ireland of the Ireland-specific banking boom and bust we would need to model how the economy might have performed in  18  It is worth noting that this sum is much smaller than the total amount of fiscal belt-tightening that has occurred since the end of the boom.