RT info:eu-repo/semantics/article T1 Moral Hazard in Monday Claim Filing: Evidence from Spanish Sick Leave Insurance A1 Martín Román, Ángel Luis A1 Moral de Blas, Alfonso AB The Monday effect on workers’ compensation insurance shows that there is a higher proportion of hard-to-diagnose injuries the first day of the week. The aim of this paper is to test whether the physiological hypothesis or the economic explanation is more satisfactory to understand this Monday effect and, if both are correct, to obtain an estimation of the magnitude of each of them. To do this, we exploit the singular legal regulation of Spanish sick leave benefits and use this country as a “laboratory”. Our econometric analysis detects and measures a hard-to-diagnose reporting gap on Mondays by about 6.5 percentage points due to physiological reasons and up to 1.4 percentage points attributable to moral hazard for those injuries with a short recovery period. PB De Gruyter YR 2016 FD 2016 LK http://uvadoc.uva.es/handle/10324/32391 UL http://uvadoc.uva.es/handle/10324/32391 LA eng NO The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 16(1), pages 437-476, January DS UVaDOC RD 02-may-2024