Forest biodiversity experiments test how species diversity affects forest ecosystem functioning, typically in terms of forest productivity. In this Review, we discuss key findings from these ...

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 ...

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 ...

University of California, Berkeley, professor David Card was awarded one half of the 2021 Nobel Memorial Prize in Economic Sciences "for his empirical contributions to labor economics," while ...

A natural experiment is an empirical study in which individuals (or clusters of individuals) are exposed to the experimental and control conditions that are determined by nature or by other factors ...

College of Arts and Sciences faculty voted in a meeting on Nov. 16 to require CAS students to complete a natural science course with a laboratory component in addition to standard Boston University ...