Table 4. Variables used for explaining the probability of a variable changing its ranking position.

Variable	Definition
DIFNEXT	Difference in independent variance explained between a variable and the next one
DIFPREVIOUS	Difference in independent variance explained between a variable and the previous one
DIFSECOND	Difference in independent variance explained between a variable and the second-further one
DIFTHIRD	Difference in independent variance explained between a variable and the third-further one
DIFNEXTPREVIOUS	Sum of the differences in independent variance explained between a variable and the next and previous ones
DIFALL	Sum of the differences in independent variance explained between a variable and all the rest
VARIABLES	Number of variables used to perform the HP analysis