I've invited five Nobel laureates back to the Bulletin with UBS.

Here Daniel Kahneman talk about how noise impacts our decision making.

David Kahn explores the driving forces behind wage inequality.

Gido Inbens shares how natural experiments can add credibility data.

And Paul Milgram and Robert Wilson explain how auctions can be used to increase fair competition.

You can explore more at monocle.com.

That's where you can join the club by subscribing to Monocle magazine.

Listen to the Bulletin with UBS on Apple Podcasts, Spotify,

or wherever you get your audio.

Hello and welcome to the Intelligence from the Economist.

I'm your host, Jason Palmer.

Every weekday we provide a fresh perspective on the events shaping your world.

It's obvious that there's some unaccounted four cash out there

in coat pockets and behind couch cushions.

But there's so much more than you probably think,

50 billion pounds worth in Britain alone.

So why does no one seem to care about it?

And for a good many years,

if you were to write to Sherlock Holmes at his fictional address on Baker Street in London,

you'd actually get a considered reply.

We meet the man who unwittingly became Holmes at Secretary.

First up though.

...