"His basic findings have been accepted by many economists, although not by Mr. Chiswick, who accuses his rival of "misrepresenting my contributions in order to build himself up." Mr. Borjas retorts that, early on, Mr. Chiswick tried to trash his work. Each man scoffs at the other's charges.
When both attended a conference in Australia some years back, they ended up in shouting matches. "It was like: 'Guys, go up to the room and punch each other out,' " says Harvard economist Richard Freeman, who accompanied the pair."