Why Do Jewellery Shops Cluster Together?

Why competing shops often open right next to each other, from jewellery bazaars to electronics markets, explained by Hotelling's model and customer search.

In many Indian cities, entire streets are lined with jewellery shops, or electronics stores, or wedding clothes. Why would competitors choose to sit right next to each other?

The ice cream sellers

In 1929, economist Harold Hotelling imagined two ice cream sellers on a beach, with customers spread evenly along it. Where should they set up?

If they spread out, each at a quarter of the way along, each serves half the beach.
But each can gain customers by moving slightly toward the middle, capturing more of the beach.
Eventually, both end up side by side in the middle.

This is called Hotelling’s model or the principle of minimum differentiation. Competitors cluster because each wants to be close to as many customers as possible.

Search costs

Clustering also helps customers:

Buying jewellery is a big decision. Customers want to compare designs and prices.
A cluster lets them visit many shops in one trip, reducing search costs.
So customers prefer to go where many shops are, and shops go where customers are.

Shared benefits

Reputation: a famous market attracts buyers from across the city.
Suppliers: goldsmiths, repair workers and certifiers set up nearby.
Information: shops learn about trends and prices from neighbours.

Examples in India

Jewellery bazaars in many old city centres.
Electronics markets such as Nehru Place in Delhi and Lamington Road in Mumbai.
Book markets such as College Street in Kolkata.

Beyond shops

Hotelling’s idea also explains why political parties may move toward the centre to capture the most voters, and why many products look similar.

Choosing a wedding necklace

A family shopping for a wedding necklace visits a street with twenty jewellery shops. In an afternoon, they compare designs and prices across ten shops. A lone shop on the edge of town would struggle to attract them, even with good prices, because customers prefer the convenience of comparison.

Thinking shops avoid competitors at all costs

For goods that people compare carefully, being near competitors can attract more customers than being alone.

Key takeaways

Hotelling's model shows competitors moving toward the middle to capture customers.
Clusters reduce customers' search costs, attracting more buyers.
Shops share reputation, suppliers and information.
The same logic explains similar products and political positioning.