Contagious Criminal Career Models Showing Backward Bifurcations: Implications for Crime Control Policies

Table 2

Models parameters and their biological meaning.

Parameters	Description
	Rate of recruitment of individuals into the core group
	Basic flow to the criminality () (criminal propensity)
	Rate of cooptation of first-time ex-offenders (contact rate between and )
	Rate of cooptation of second-time ex-offenders (contact rate between and )
	Rate of early desistance from crime
	Rate of desistance from crime when in the first cycle
	Rate of desistance from crime when in at least the second cycle
	Natural inmate mortality rate
	Additional inmate mortality rate when in
	Additional inmate mortality rate when in
	Release rate from incarceration of first-time offenders
	Release rate from incarceration of at least second-time offenders