A modified version of CRAVED that breaks down the ‘available’
component into ‘abundant’ and ‘accessible’ (CRAAVED), was proposed
by Pires and Clarke (2012) when studying parrot poaching in
Mexico. In their study, Pires and Clarke found that their measures of
‘abundant’ and ‘accessible’, when controlling for the other, were
significantly related to explaining which species of parrots were
poached the most, suggesting that CRAAVED might be a more
useful model than CRAVED when studying certain types of theft.
This reasoning dictated Petrossian and Clarke's (2014) choice of the
CRAAVED model to examine why certain fish species were more
vulnerable to IUU fishing than others.