
Why exchange rates move a little every day
An exchange rate is simply the price of one currency in another, and like most prices it changes when supply and demand change.
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An exchange rate is simply the price of one currency in another, and like most prices it changes when supply and demand change.

The poster you see is the result of months of negotiation between festivals, agents and artists. Organisers usually secure their biggest names early, because those acts help sell tickets.

On most days, markets move for a mix of small reasons rather than one big one. Earnings that beat or miss expectations can move a single share sharply, and a whole sector with it.

Walk into any small shop and you'll see a mix of QR codes, card machines and cash drawers. Card payments usually carry a fee for the merchant, while UPI payments in India generally don't.

A systematic investment plan, or SIP, puts a fixed amount into a mutual fund at regular intervals — usually monthly. When prices are low your fixed amount buys more units; when they are high it buys fewer.

An emergency fund is money set aside for surprises — a medical bill, a repair, or a gap between jobs. Many planners suggest three to six months of essential expenses. Freelancers or single-income households often aim higher.

A budget speech is the government's yearly statement of what it plans to spend, how it will raise money and what taxes will change. Most tax changes are written into a finance bill.

A trade bloc is a group of countries that agree to make trade between them easier than trade with everyone else. The simplest blocs cut or remove tariffs on goods moving between members.

The G20 is a forum where the largest economies meet to talk about growth, trade, debt and other shared problems.

The price of a dish reflects far more than what's on the plate. Many restaurants aim for ingredients to make up roughly a third of a dish's price, though it varies widely.

A ticket price reflects far more than the artist's fee. Venue hire, crew, staging, security and travel all have to be covered by ticket sales. Some sellers raise prices for high-demand seats while they're on sale, much like airlines do.

Most health insurance policies don't cover everything from day one. The waiting period is the time before certain claims are paid. Many policies don't pay for illnesses that start in the first weeks, though accidents are usually covered straight away.

In India and many other countries, most new films open on a Friday. Cinemas are busiest on weekends, so a Friday opening gives a film three strong days straight away.