The risk of harm and the greater good
Tim Harford: why do randomised trials (even when harmless) make us feel uncomfortable? "It is unclear why we have this aversion to randomising between two unobjectionable alternatives. The most straightforward explanation is that people either object to the idea of being arbitrarily manipulated, or they are unnerved by the realisation that the clinical director doesn't know what he or she is doing." In his weekly column for the Financial Times, Undercover Economist Tim Harford considers.
From Financial Times