People seriously misjudge accident risks because they routinely neglect relevant information about exposure. Such risk judgments affect both personal and public policy decisions (e.g., choice of a transport mode) but also play a vital role in legal determinations, such as assessments of...

Survey respondents assessed the risks of terrorist attacks and their consequences and were asked how their assessments changed from before September 11 to the present. This paper analyzes those current and recollected risk assessments. More than half of the respondents exhibited what we label...

Catastrophic risks differ in terms of their natural or human origins, their possible amplification by human behaviors, and the relationships between those who create the risks and those who suffer the losses. Given their disparate anatomies, catastrophic risks generally require tailored...

The BP Deepwater Horizon oil spill highlighted the glaring weakness in the current liability and regulatory regime for oil spills and for environmental catastrophes more broadly. This article proposes a new liability structure for deep sea oil drilling and for catastrophic risks generally. It...

As economists, we believe that the Second Circuit's ruling, by not allowing the consideration of important information about the relationships between the benefits and costs of alternatives, is economically unsound. In particular, we believe that, as a general principle, regulators cannot make...

Governments often require that products carry warnings to inform people about risks. The warnings approach, as opposed to the command and control approach to risk regulation, functions as a decentralized regulatory mechanism that empowers individuals to make decisions that take into account...

As we understand it, the D.C. Circuit did not allow the EPA to consider the costs of complying with ozone and PM NAAQS. As we further understand it, this legal ruling can be overturned only by this Court. As economists, we believe that the D.C. Circuit's ruling not allowing the EPA to consider...

Environmental risk beliefs may be governed more by direct experiences than by indirect experiences derived from outcomes experienced by others. This emphasis could have a rational basis or could be based on behavioral rationales in terms of the well-established Availability Heuristic or the...

A nationally representative sample of respondents estimated their fatality risks from four types of natural disasters, and indicated whether they favored governmental disaster relief. For all hazards, including auto accident risks, most respondents assessed their risks as being below average,...