The government in the market

Markets run on demand and supply:

• demand: how much buyers are willing and able to buy at a certain price and time
• supply: how much sellers are willing and able to sell at a certain price and time

But sometimes this doesn't work well, and the government steps in. Here are four ways:

1. Controlling prices.

• a maximum price for essentials like life-saving medicines (imagine one fever tablet costing ₹200; a poor family couldn't buy it!)
• a minimum price for crops like wheat, paddy and maize, so farmers don't lose money
• minimum wages, so employers pay workers fairly

But carefully: if prices are set too low, producers stop producing; too high, and consumers suffer.

2. Quality and safety. The government protects consumers from unfair practices. For example, it sets rules for approving medicines and tests samples to check they meet quality standards, so they don't harm anyone's health.

3. Harmful side effects. Some markets cause harm beyond buying and selling, like factories polluting the environment, or single-use plastics harming nature and health. So the government makes strict rules, such as banning single-use plastic bags.

It also checks the weights and measures of packets, so you get the net quantity promised. This idea is old! Kauṭilya's *Arthaśhāstra* told ghee sellers to give 1/50 extra, because some ghee sticks to the measuring can.

4. Public goods. Businesses make things to earn a profit. But some things nobody expects to profit from: public parks, roads, policing ... You can't buy a road at a shop! So the government provides these public goods: things available to everyone, where using them today doesn't use them up for tomorrow.

And a balance: rules keep markets fair and stop consumers being exploited, but too many rules can make it hard for markets to work.