@Ticomaya,
OK, but even if those studies are true (and I'm not saying they are, if you'd like to find them we can go from there), Delay is saying all of this in support of Bunning's filibuster. Even if the majority of the people don't look until they have only 2-3 weeks left (and I'd want the studies to be about the current economic climate or its equivalent, not in the late 90's say when jobs were ample), I don't think this is a good argument against unemployment benefits.
As in -- I disagree with what Delay is saying, even in the most generous reading of what that is. (And again, it's hard to read it generously when he had the opportunity to disagree with Crowley and didn't.)