Ruffles, hip ties, breast padding, cutouts that create an optical illusion of curves and ruching are good examples.

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The problem for traders is that it is much more complicated to create models for a world of fat tails than for a world of bell curves.

ECONOMIST: Buttonwood

Dr Stefanov and his colleagues (or, rather, their computers) looked for the boundaries between densely developed areas, which reflect a lot of light because of all the edges and flat surfaces that people like to create, and those with more vegetation, which appear dark by comparison, as nature prefers curves.

ECONOMIST: Urban geography