I've been researching the Casper algorithm and I've seen the number 2% thrown around a lot in terms of the gains made on a stake.
My burning question is whether this interest is per year? Or per the minimum stake time of two months? I'm trying to determine the potentially yearly return for a stake. 2% isn't great, but if it's for shorter duration it will compound and produce reasonable returns.
Edit: I assumed the Protocol and Client discussion was the best place for this question- if not please let me know.