. >> george freelander. a suggestion that has a question, i'll make it quick. a lot of the work being done on technological change and its implications for the wage side as opposed to the labor side talks about income supports as a part of the solution. so that drags this into the more modern era and i'd love to hear your response from that. >> let's take this question. >> mostly for greg duncan. you seem to be more willing than i seem to be willing to redirect some of the current safety investments from older children to younger children. so i want to ask you or push you to think about how we think about the short-term impacts versus long-term impacts. i think that's based on long-term impacts but i think short-term impacts, for example, if a 15-year-old isn't getting enough to eat, he might do other things that are socially problematic in a way that a 2-year-old wouldn't. so how do we think about those? >> even for short-term impacts, especially achievement, school achievement, right? and to some extent social behavior, right? the evidence is still fairly, in