Dale T. Mortensen, American economist and academic, Nobel Prize laureate (born 1939)

Dale Thomas Mortensen was an American economist, a professor at Northwestern University, and a winner of the Nobel Memorial Prize in Economic Sciences.

The Nobel Memorial Prize in Economic Sciences, officially the Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel, commonly referred to as the Nobel Prize in Economics, is an award in the field of economic sciences administered by the Nobel Foundation, established in 1968 by Sveriges Riksbank to celebrate its 300th anniversary and in memory of Alfred Nobel.

January 9 is the ninth day of the year in the Gregorian calendar; 356 days remain until the end of the year.