Hello and welcome to the intelligence on Economist Radio. I'm your host, Jason Palmer.

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

Shifting the planet to low or no-carbon economies is going to be expensive, but not every intervention is as pricey as the next.

We take a look at new ways to think about costs and how policymakers can determine what's best in terms of value for money.

And on the island of Zanzibar, off Africa's east coast, the government owns most of the land.

But it's citizens that own each and every fruit tree.

They're handed down the generations, and keeping track of who owes whom is no easy task.

First up, though, Rishi Sunak has been Britain's Chancellor of the Exchequer, its keeper of the national purse strings, for just over a year.

And today marks another significant moment in a tenure defined by COVID-19.

This afternoon, Mr. Sunak will deliver his 2021 budget,

the government's tax and spending plans for a Britain emerging from a pandemic.

He'll have to balance protecting jobs and supporting businesses

with beginning to repay the eye-watering 271 billion pounds,

or $380 billion, borrowed by the government over the past year.

Ahead of the speech, the Treasury released a highly produced film with an upbeat Mr. Sunak

talking over stirring music.

I mean, we've had a lot thrown at us this year.

Everywhere I go, I just see that spirit of resilience.

Mr. Sunak has earned himself a reputation for competence.

The dashing and whipsmart 40-year-old is the bookmaker's favorite to be the next prime minister.

But first, he'll have to plot a careful course through the end of the pandemic. The British economy at the moment is about

10% smaller than it was a year ago. Duncan Weldon is our Britain economics editor.

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