What is the economic term for the amount of output per hour of work?

Frank Sinatra and J. Edgar Hoover were among those who objected to which crime drama series that premiered in October 1… Juan Carlos, Prince Philip and Dennis Conner all took part in the 150th jubilee of which sporting event in 2001? Among U.S. racetracks only Saratoga is older than which Preakness site, opened in 1870? Complete the old Brylcreem slogan: "A little ___ 'll do ya." Amoxicillin and ampicillin are types of what? In the 1990s, AMR and UAL were the parent companies of the top two U.S. companies in which industry? Amsterdam Island in the Indian Ocean is home to a rare type of which wandering seabird? Which Norwegian explorer led the first crossing of the Greenland ice cap in 1888?