Thanks for asking. I am building a model where the extent of misreporting m is a product of (i) a base magnitude (assumed to equal the average of the absolute profit figure, as profit can be negative) with (ii) the potential room of manipulation constrained by certain governance mechanisms (G) and exploited by the bias effort resultng from the temption to misreport (X). I outlined the model in this post (full sampling code uploaded there).
The simulation code is here: simu_SSM2.2.stan (1.4 KB)
If you have time to take a look, would appreciate very much your feedback on any error discovered or advice on improving the model. Thanks.