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Coal Mine Safety and Coal Yield: A First Look
coal mine safety coalyield panel data fix effect instrumental variables
2014/7/7
Thispaper analyzesandtests relationshipbetween coalmine mortalityand coalyield in China.Itproposesatheoryillustrating thatyieldcanbe eitherpositiveornegative relatedto mortality,depending onthree effe...
International Federation of Chemical, Energy, Mine Applauds Coal Agreement Reached in Colombia
mining industry
2007/2/6