Sludge

If your foot sinks into a muddy patch on the road, it's hard to keep moving. Sludge in economics works the same way: it's an invisible mud that blocks what people are trying to do. If a 'nudge' is a gentle push toward a good choice, sludge is the opposite, a wall that gets in the way and makes things annoying.

You can run into sludge easily in the online services we use every day. A classic case: signing up takes one button and a few seconds, but to cancel a subscription you have to dig through hidden menus five or six times. Some companies even make you call customer service in person before they'll let you cancel.

This hassle is often no accident. It's a deliberate device to keep customers from leaving and protect profits, nudging them to give up out of annoyance. It's a psychological trick that preys on tiredness and laziness so people lose out. Still, some sludge, like government paperwork, piles up without anyone intending it.

Sludge isn't only a business tactic. It also shows up often in government welfare programs built to help people who badly need it. Making people collect dozens of documents themselves and visit a government office just to get a benefit is all administrative sludge.

People who are sick, or who live paycheck to paycheck, have the least time and energy to gather such complicated paperwork. The result is that people give up applying because the process is too complicated, even for benefits they truly need. A policy that began with good intentions fails because it hits a wall of red tape.

Sludge like this wears down people's precious time and mental energy. Economists stress that simply clearing out administrative sludge could save a great deal in social costs and help vulnerable people much faster.

To be more precise, not every complicated procedure is bad sludge. Sometimes there are moments when friction needs to be added on purpose, to keep people safe and prevent mistakes that can't be undone.

A good example is a security step that asks you to re-enter your password or verify your identity when you send a large sum of money. If one tap could send your life savings, mistakes and phone scams would spiral out of control. A safeguard like this, which stops bad choices, is called 'good friction.'

So the key test that separates real sludge from good friction is who the friction was designed for. If a step protects users from danger, it's a necessary seat belt. If it blocks consumers' rights and only serves the company's profit, it's sludge that should be removed.