However, BMI has several flaws. BMI is derived from a simple math formula created in the 1830s by Lambert Adolphe Jacques Quetelet, a Belgian astronomer, mathematician, statistician, and sociologist.

That number gets rounded up to 0.2, which leads to a 20% tariff rate. “The blind application of such a simple formula ignores so much nuance,” Dominic Pappalardo, chief multi-asset strategist ...