The supplementary old-age pension system in Poland consists of group and individual plans. This research covers the latter, namely the individual retirement accounts and individual retirement saving accounts that were introduced in 2004 and 2012 respectively. The main aim of the paper is to...

[...]We focus here on three types of capital ratios—riskweighted,leverage, and gross revenue ratios. For each ratio, weexamine what makes it actually or potentially useful for bankregulation and we ask whether it is indeed significantly relatedto subsequent bank failure. Perhaps not...