From the Times of Israel:
‘Lawrence Summers rejects post of Bank of Israel governor’
Acting governor Karnit Flug said to be back in the running; Netanyahu rebuffed by former US Treasury secretary, says Channel 2
It would be interesting to know whether Summers replied in words to the effect of, "Sorry, I'm an American."
Perhaps not. The man Netanyahu wanted Larry to replace, Stanley Fischer
(Israel's head central banker from 2005-2013), is also an American citizen. On the other hand, Fischer was born and raised in Rhodesia.