Here is a sentence from the magazine The Economist that I don't understand.
Fully 5.8m more Americans are in work than in December of that year, when the Federal Reserve began raising interest rates. That is two-thirds as many as lost their jobs during the Great Recession.
The italicized sentence is the one that confuses me. Shouldn't it be "That is two-thirds as many as those who lost their jobs during the Great Recession?"
I hardly believe The Economist made a mistake in that sentence. Can anyone tell me why the sentence is correct as it is and, if there is any, what words might have been omitted from that sentence?