Fig 1.
Top row: Yearly trends in the total number of block party events and the spontaneous proportion of block party events. Bottom row: Yearly trends in the number of violent and non-violent crimes per year.
Table 1.
Additional details about each data source used in our analysis.
For each data type, we list the raw data variables used and any measures constructed from those data.
Fig 2.
Distribution of median household income, poverty metric, and proportion of black population between high and low vibrancy neighborhoods in Philadelphia.
Fig 3.
Top row is the standardized differences between neighborhoods with high vs. low community vibrancy, both before and after propensity score matching. Top Left: total number of permits as the measure used to define the high vs. low community vibrancy group. Top Right: spontaneous proportion as the high vs. low community vibrancy measure. Bottow row is the standardized differences between neighborhoods with increasing trends over time in community vibrancy or not. Bottom Left: treatment group is neighborhoods that have a significantly increasing trend over time in block party permits. Bottom Right: treatment group is neighborhoods that have a significantly increasing trend over time in spontaneous proportion.
Table 2.
Average within-pair differences between the treatment and control groups (and 95% confidence intervals) for all twelve combinations of four treatment variables (columns) and crime outcomes (rows).
For the “crime slope” outcome, the difference between slopes is provided, whereas for the “Crime +” and “Crime −” indicators, the odds ratio is provided.