Daniel Kahneman, an Israeli-American psychologist and best-selling author whose Nobel Prize-winning research upended economics — as well as fields ranging from sports to public health — by demonstrating the extent to which people abandon logic and leap to conclusions, died March 27. He was 90.His death was confirmed by his stepdaughter Deborah Treisman, the fiction editor for the New Yorker. She did not say where or how he died.Dr. Kahneman’s research was best known for debunking the notion of “...