In these heady days of American economic expansion and low inflation, his gloomy pronouncements may sound rather frumpy (Herblock, a cartoonist, always depicted Mr Martin in an old-fashioned stiff collar).

ECONOMIST: William Martin

The identity of the painting's subject is not known, but it is thought the balding, bearded man in a stiff, starched collar may be Juan Mateos, King Philip IV of Spain's master of the hunt.

CNN: Previously unknown Velazquez portrait discovered

Instead, they have faced stiff opposition from well-financed defendants represented by the top lawyers from the white collar defense bar.

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Ms Abbott will argue that today's generation is "caught between the 'stiff-upper lip' approach of previous generations and today's cultural tornado of male cosmetics, white collar industry, and modernised workplaces".

BBC: Diane Abbott to warn of British 'masculinity crisis'