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At the heart of the debate over illegal immigration lies one key question: are immigrants good or bad for the economy?
					出自-2011年6月阅读原文
				 
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According to a study by George Borjas, a Harvard economist, immigration reduced the wages of American high-school dropouts by 9% between 1980-2000.
					出自-2011年6月阅读原文
				 
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What worried them most, in other words, was the fiscal (财政的) burden of immigration.
					出自-2011年6月阅读原文
				 
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The irony is that for all the overexcited debate, the net effect of immigration is minimal
					出自-2011年6月阅读原文
				 
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The American economy used to thrive on immigration but now it's a different story.
					出自-2011年6月阅读原文
				 
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The consensus among economists is that immigration should not be encouraged
					出自-2011年6月阅读原文
				 
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The general public thinks differently from most economists on the impact of immigration.
					出自-2011年6月阅读原文
				 
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In what way does the author think ordinary Americans benefit from immigration
					出自-2011年6月阅读原文
				 
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Why do native low-skilled workers suffer most from illegal immigration?
					出自-2011年6月阅读原文
				 
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What is the irony about the debate over immigration
					出自-2011年6月阅读原文
				 
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Immigration in the developed world is the highest it has ever been, and it is making a useful difference.
					出自-2010年12月阅读原文
				 
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Public opinion polls show that people in most rich countries already think that immigration is too high
					出自-2010年12月阅读原文