Remarks on generic stability and random types

We introduce the notions of $rgs$ and $irgs$ as properties of a Keisler measure $\mu$, and prove that they are respectively equivalent to the existence of a generically stable random type that extends $\mu$ and to the fact that its canonical extension, namely the random type $r_\mu$, is generically stable. We compare these notions with the known concepts of $fim$, $fam$, and self-averaging, and in particular we show that every $irgs$ measure is dependent in the sense of [10].