We draw attention to two problems associated with the use of instrumental variables (IV), the importance of which for empirical work has not been fully appreciated. First, the use of instruments that ...

More than 70% of generative artificial intelligence (GenAI) experiments fail to make it to production. 1 Is this number higher than you thought? Let’s explore why. With bold claims flooding the market ...

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Foods rich in tryptophan may boost the production of serotonin in the brain. These foods include eggs, some hard cheeses, soy-based products, turkey, and more. Serotonin is a natural neurotransmitter ...