The good news is that there are enough young first- and second-generation immigrants to do the job.

The even better news, Masnick says, is that "the second-generation immigrants will hit the housing market just when they are needed most."

Quinces are particularly popular among the first- and second-generation Hispanic immigrants.

This is important to note as second-generation immigrants must actively work to identify themselves with their ethnic group.

Many second-generation immigrants head to the suburbs when their children approach school age, but neighborhood schools reflect a rich diversity.

There is currently no legislation on second-generation immigrants (those born in Israel to immigrant parents).

"Like many second-generation immigrants, I have two identities," he says.

In 1880 almost 90 percent of Chicagoans were first- or second-generation immigrants.

The gap becomes even larger among second-generation immigrants (children with at least one parent born outside the country).

In the beginning, they were made up largely of second-generation Hispanic immigrants.