By Patricia Cohen, The New York Times

As unemployment rates nationwide have sunk to record lows, filching workers — from kitchens and construction sites, warehouses and Walmarts, truck cabs and nursing homes — has become routine. In cities that are magnets for immigrants, newcomers have filled some job openings, but employers across several industries and states insist that many more are needed for their businesses to function, let alone grow.

The economic impact is just one facet of an immigration debate that vibrates with political and moral import, challenging ideas about America’s identity and culture. But it is also one that can be examined more dispassionately by looking at the numbers.

And the numbers, most economists say, indicate that there is plenty of room. Immigrants make the country richer, they argue.

Read the complete story here.

Is Immigration at Its Limit? Not for Employers