Economists have debated this for 50 years, beginning with a paper by Arnold C.
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No sense buying a recent comic book and preserving it in a vault for 50 years.
For 50 years, the Pap test has been the gold standard for detecting cervical cancer.
We broke down the traditional ways of working that have pervaded our industry for 50 years.
The fuel cell, which has been around for 50 years, generates electricity from hydrogen and oxygen.
"Really, we're just waiting, " said Evie Bertaut, who has lived in Morgan City for 50 years.
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Last week Newport council decided to lease Tredegar House to the National Trust for 50 years.
Fully 11% have used the same audit firm continuously for 50 years or more.
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For 50 years after the war we have been living with Americans in our country.
Ross Perot has lived in Dallas for 50 years and made his fortune here.
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He was married to his childhood sweetheart Alison for 50 years and they had two children.
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But as well as being a scientist, Mr Rines was for 50 years a patent lawyer.
Are they responsive to that kind of rational thinking that has guided U.S. policy for 50 years?
Penney guided Doncaster from the Conference to League One, the club's highest league position for 50 years.
"This is a respectable result considering the impact of the coldest March for 50 years, " said Ms Moriarty.
Kent County Council is considering setting up a "new" grammar school in Kent, the first for 50 years.
For 50 years--1920 to 1970--annual garlic consumption in the U.S. languished at a measly half a pound per person.
For 50 years our nation has lead the world not only in building security but in promoting global prosperity.
At a ceremony in Bonn the Germans apologised to Mr Farmer for waiting for 50 years before thanking him.
The recent extreme weather, according to the Manx Met Office, was the worst the island has seen for 50 years.
Theoretically, Shtokman will be able to provide the U.S. significant volumes of liquefied natural gas for 50 years, reports say.
In 1975, Portugal held its first free elections for 50 years, the Socialist Party under Mario Soares won most seats.
James Bond movies have been around for 50 years now and thanks to Skyfall, they are bigger than ever.
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That idea has been around for 50 years at least but has never been accepted as anything more than a theory.
Roughly 7, 000 people lived in that five-floor boarding house between 1864 and 1935 (when it was boarded up for 50 years).
The markets worked smoothly for 50 years with limited access to speculators to take the other side of trades from producers.
It revealed his homosexuality, and so had been banned for 50 years after his death, and had been published only recently.
He also once drank rum with Hemingway on the Pilar and fished with baseball and fishing legend, Ted Williams, for 50 years.
For 50 years, the United States and Kenya have been strong partners.
Mongolian men have been drinking vodka for 50 years - but it's the tragic combination of unemployment and alcohol which is alarming.
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