British American Tobacco rated Sell: vapour/heated growth unclear, margins diluted, and regulatory headwinds despite a 5.4% ...

Goodhart's Law ("When a measure becomes a target, it ceases to be a good measure.") has been around long enough that it ...

Tensor networks enable researchers to tackle quantum physics problems previously thought to be solvable only by quantum computers. Credit: Lucy Reading-Ikkanda/Simons Foundation By applying a 1980s ...

We ask how far the choice of which moments to match can push estimates in misspecified structural models. The answer is: very far. Under regularity conditions, an adversarial researcher informed about ...