overdose and may reveal changes in prescribing practices that are shaping the evolving epidemic. Like Yokell et al, we have also noted—both in our own clinical practice and in that of colleagues—that real-time access to prescription databases for health professionals facilitates a patient-centered approach to addressing opioid abuse. In addition, we have encountered physicians managing chronic ...

Of those eligible, about 40% do not vote in presidential elections. When asked, about a quarter of those nonvoters will lie to the survey takers and claim that they did. Increases in education are associated with higher voting rates and lower rates of lying overall, but with increased rates of lying conditional on not voting. This paper proposes a model of voter turnout in which people who clai...

The analysis of motion crowds is concerned with the detection of potential hazards for individuals of the crowd. Existing methods analyze the statistics of pixel motion to classify non-dangerous or dangerous behavior, to detect outlier motions, or to estimate the mean throughput of people for an image region. We suggest a biologically inspired model for the analysis of motion crowds that extrac...

It has been strongly asserted in both juvenile and adult risk assessment contexts that actuarial assessment has the capacity to predict risk more accurately than clinical assessment; however, this contention is not universally accepted and many have noted that both assessment models have strengths and weaknesses. Despite this ongoing debate, it is generally recognized that the exercise of unaid...

Kinetic energy non-lethal projectiles are used to impart sufficient effect onto a person in order to deter uncivil or hazardous behavior with a low probability of permanent injury. Since their first use, real cases indicate that the injuries inflicted by such projectiles may be irreversible and sometimes lead to death, especially for the head impacts. Given the high velocities and the low masse...

We analyze an environment in which bidders’ private values change over time due to both private investments and exogenous shocks. We demonstrate that a highlydecentralized mechanism achieves efficiency. The mechanism requires a stage of costly public announcements (i.e., signaling) to induce efficient investment. For this reason, an equilibrium selection issue arises, but can be handled by a mi...

Terrorists can strike twice—first, by directly killing people, and second, through dangerous behaviors induced by fear in people’s minds. Previous research identified a substantial increase in U.S. traffic fatalities subsequent to the September 11 terrorist attacks, which were accounted for as due to a substitution of driving for flying, induced by fear of dread risks. Here, we show that this i...

Terrorists can strike twice—first, by directly killing people, and second, through dangerous behaviors induced by fear in people’s minds. Previous research identified a substantial increase in U.S. traffic fatalities subsequent to the September 11 terrorist attacks, which were accounted for as due to a substitution of driving for flying, induced by fear of dread risks. Here, we show that this i...