Documentation for Guns Data Guns is a balanced panel of data on 50 US states, plus the District of Columbia (for a total of 51 “states”), by year for 1977 – 1999. Each observation is a given state in a given year. There are a total of 51 states × 23 years = 1173 observations. These data were provided by Professor John Donohue of Stanford University and were used in his paper with Ian Ayres “Shooting Down the ‘More Guns Less Crime’ Hypothesis” Stanford Law Review, 2003, Vol. 55, 1193-1312. Variable Definitions Variable Definition vio violent crime rate (incidents per 100,000 members of the population) rob robbery rate (incidents per 100,000) mur murder rate (incidents per 100,000) shall = 1 if the state has a shall-carry law in effect in that year = 0 otherwise incarc_rate incarceration rate in the state in the previous year (sentenced prisoners per 100,000 residents; value for the previous year) density population per square mile of land area, divided by 1000 avginc real per capita personal income in the state, in thousands of dollars pop state population, in millions of people pm1029 percent of state population that is male, ages 10 to 29 pw1064 percent of state population that is white, ages 10 to 64 pb1064 percent of state population that is black, ages 10 to 64 stateid ID number of states (Alabama = 1, Alaska = 2, etc.) year Year (1977-1999)

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