Table 5.

Instrumental Variables Estimates of the Relationship between Methamphetamine Consumption and Property and Violent Crime

	Log burglaries (1)	Log larcenies (2)	Log MV thefts (3)	Log robberies (4)	Log rapes (5)	Log homicides (6)	Log assaults (7)
Log amphetamine hospitalizations	0.005 [0.042]	0.008 [0.035]	0.078 [0.046]	−0.179 [0.051]	−0.142 [0.103]	−0.188 [0.133]	−0.032 [0.049]
Log cocaine hospitalizations	−0.017 [0.011]	−0.016 [0.011]	−0.018 [0.013]	0.017 [0.018]	−0.015 [0.032]	0.034 [0.032]	−0.006 [0.016]
Log opioid hospitalizations	0.007 [0.011]	−0.010 [0.008]	−0.002 [0.015]	0.008 [0.016]	−0.014 [0.023]	−0.034 [0.039]	−0.010 [0.014]
Log cannabis hospitalizations	0.009 [0.014]	−0.001 [0.012]	−0.030 [0.016]	0.044 [0.017]	0.033 [0.033]	0.046 [0.062]	0.000 [0.015]
Log alcohol hospitalizations	−0.011 [0.016]	−0.031 [0.017]	−0.055 [0.030]	−0.008 [0.031]	−0.002 [0.039]	−0.046 [0.058]	0.037 [0.027]
Constant	55.651 [17.410]	21.382 [13.532]	68.826 [25.589]	33.723 [21.855]	−2.869 [29.210]	−6.210 [33.925]	23.737 [23.506]
Year and month dummies	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Observations	2,784	2,784	2,784	2,784	2,784	2,784	2,784
R2	1.00	1.00	0.99	0.99	0.97	0.96	0.99

Notes: The dependent variable is the log of the total number of reported crimes in a county in a month. All of the regressions include county fixed effects, and control for the proporation black and Hispanic, and for the proportion age 15–19, 20–24, 25–29, 30–34 and 35–39. Standard errors are in brackets; they are robust and clustered on county. The proxy for consumption is the log of the count of amphetamine-related hospital admissions in a county in a month + 1. The unit of observation is county by month. The instrument takes on a value of one between August 1995 and September 1996 and the estimates are robust to varying the starting and ending date.