makes the fact that this happens a little bit surprising so one comment i want to make is that these types of results are similar to stuff that's kind of long-standing in the revenue management literature where in the early results in that literature you know it was established that that fluid pricing policies of the sort that we were talking about are not going to be better than dynamic pricing and there's been a lot of work extending those types of results but one interesting thing in that literature is they're not really been any work that