another answer could be felony convictions.
The economic stability that lead to the neolithic revolution was: C. Political systems
Economic stability lead to a situation when people no longer wanted to use violence toward one another when they want to obtain a certain type of resources. This is why a political system to create a regulator was made during the neolithic revolution.
As of 2007, the richest 1% held about 38% of all privately held wealth in the United States. while the bottom 90% held 73.2% of all debt. According to The New York Times, the richest 1 percent in the United States now own more wealth than the bottom 90 percent.Today, the top 1 percent of households own more wealth than the bottom 90 percent combined.