How corruption slows disaster recovery.  Much of this article seems obvious but it is worth noting that corruption may not only slow down recovery but contribute to deaths.  A couple of quotes follow:

We believe progress would have been quicker if Puerto Rico’s first big energy contract had been correctly executed. After a disaster, corruption can literally kill.
Our work also identified several ways that Caribbean countries could limit how corruption harms future hurricane recoveries.

Better disaster preparedness – including building code compliance, zoning enforcement in exposed locations like beaches and hillsides and transparent, well-resourced disaster-response teams – would reduce turmoil after extreme weather. That, in turn, would minimize opportunities for the kinds of chaos-related corruption we documented across the Caribbean.