Zero-risk bias is a tendency to prefer the complete elimination of a risk even when alternative options produce a greater reduction in risk (overall).
This effect on decision making has been observed in surveys presenting hypothetical scenarios and certain real world policies (e.g. war against terrorism as opposed to reducing the risk of traffic accidents or gun violence) have been interpreted as being influenced by it.
The above text is retrieved from the Wikipedia article “Zero-Risk Bias“, which has been released under the GNU Free Documentation License. Text available under the Creative Commons Attribution-ShareAlike License; additional terms may apply.