Regarding David Henderson’s op-ed “ ‘Natural Experiments’ Lead to an Economics Nobel” (Oct. 12): Natural experiments require circumstances in which political events, geopolitical boundaries and so ...
The Nobel Memorial Prize in Economic Sciences was awarded Monday to David Card of the University of California, Berkeley, Joshua Angrist of the Massachusetts Institute of Technology and Guido Imbens ...
Humanity’s oldest and longest-running climate experiment, the International Polar Year (IPY), will run for the fifth time in history next decade, with IPY-5 planned for 2032-2033. IPY-5 could be the ...
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