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Hong Kong society
Opinion
My Take
Alex Lo

How to ‘sludge’ HK migrants into leaving the UK and Canada

BN(O)ers and ‘streamers’ are no longer welcome. Too bad that the respective governments just will not or cannot say that out loud

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People walk outside the Tower of London as the Tower Bridge stands on the river Thames. Photo: AP
Alex Lo has been an SCMP columnist since 2012, commenting on China and international affairs.

‘Nudging’ is the gentle way of pushing you towards making good choices; think of your nice parents. ‘Sludging’ is the opposite, designed to encourage you to make bad or at least suboptimal decisions; picture the car/insurance/mobile phone/real estate salesmen.

They are terms in pop psychology borrowed from behavioural and cognitive sciences.

Some governments such as that under former British prime minister David Cameron even set up a department of nudges, though it had a more respectable title. Whether it ended up nudging or sludging citizens remains a matter of dispute.

One amusing example of nudging is about a European international airport – I forget which one – that needed to cut budgets and slash the number of toilet cleaners. So they started putting tiny toy-like goalposts at the centre of urinals so male users naturally aimed better rather than splashing all over.

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