 Risk-benefit analysis gives rise to several other philosophical problems of considerable philosophical interest (Hansson 2007). Due to its quantitative nature, it tends to leave out problems that are difficult to quantify, such as risks of cultural impoverishment, social isolation, and increased tensions between social strata. Furthermore, due to its aggregative structure, risk-benefit analysis often leaves out social justice and other distributional aspects, although these are in fact accessible to quantitative treatment.