Collection of 21 items signed by winners of the Nobel Memorial Prize in Economic Sciences, including: John Harsanyi (ALS and SP), Milton Friedman (SP), Douglass North (SP, signed on the reverse), Franco Modigliani (TLS and SP), Robert C. Merton (two ALSs, two signed business cards, and a signed lecture booklet), Harry Markowitz (two TLSs and two signed photos), Wassily Leontief (SP), and Lawrence Klein (two ALSs, two trading cards, and a signed business card). Most of the letters offer intriguing responses to questions about their work and influences. In overall fine condition, with poor contrast to Friedman's signature.