larry ikele studied this for the pew trust. he said blacks don't have the same kinds of jobs as white middle class. fwloo people in the black middle class tell you a lot of that is generated by public sector jobs and related jobs and some african-american analysts and scholars will tell you that they haven't made as much progress in private sector, and they would like to see that. >> some economists believe it makes it harder for black middle class citizens to climb the economic ladder or send their children to better schools. some of the communities where philadelphia's black middle class are living aren't gent fieing, so their home values aren't appreciating. they say the resilience of winnfield is due to the vigilance of residents and organizations like the winnfield residents association. >> do you think that's the answer to success in predominantly white neighborhoods, too? >> when you look at white neighborhoods it may not be publicized as much. they quietly work together to solve their problems. they have the resources t