Damien Pouzo, "A Framework for Modeling Bounded Rationality: Mis-specified Bayesian-Markov Decision Processes"
Econ 2: Non-Rival Commodities

Yes, Gun Background Check Save Lives: Live from La Farine LXXXXIX: February 19, 2014

Igor Volsky: This New Study Proves That Background Checks Save Lives: "Missouri’s decision to repeal its law requiring all handgun purchasers to obtain a 'permit-to-purchase' (PTP) verifying they passed a background check led to a 16 percent increase in the state murder rate, a new study from Johns Hopkins Center for Gun Policy and Research has found....

State legislators eliminated the permit requirement in June of 2007, as part of a larger firearms bill granting criminal and civil immunity to homeowners who use deadly force against intruders.... Removing the licensing requirement contributed to an “additional 55 to 63 murders per year in Missouri between 2008 and 2012.” The increases occurred in the first full year after the repeal, during which the state saw “large increases in the number of guns diverted to criminals and in guns purchased in Missouri that were subsequently recovered by police in border states that retained their PTP laws.” The analysts controlled “for changes in policing, incarceration, burglaries, unemployment, poverty, and other state laws adopted during the study period that could affect violent crime,” a press release for the study says....

Repeal of Missouri's background check law associated with increase in state's murders:

This study provides compelling confirmation that weaknesses in firearm laws lead to deaths from gun violence," said Daniel Webster, ScD, MPH, director of the Johns Hopkins Center for Gun Policy and Research and the study's lead author. "There is strong evidence to support the idea that the repeal of Missouri's handgun purchaser licensing law contributed to dozens of additional murders in Missouri each year since the law was changed." Webster and colleagues found that the spike in murders in Missouri following the PTP law repeal only occurred for murders in Missouri committed with a firearm and was widespread across the state's counties. Following the change in Missouri's gun laws, none of the states bordering Missouri experienced significant increases in murder rates.... The repeal of Missouri's PTP law was associated with a twenty-three percent increase in firearm homicides rates.

Comments