- A supply chain is every step between raw materials and the final customer
- Lean chains are efficient but have little room for surprises
- Higher costs often reach shop prices with a delay
What a supply chain is
A supply chain is the sequence of steps that turns raw materials into a product in a customer's hands. A simple item of clothing may involve cotton grown in one country, fabric woven in another, sewing in a third, shipping across an ocean, a warehouse and finally a store or a delivery van.
Efficient, but fragile
For decades many companies kept only small stocks and ordered parts just in time, because storage costs money. This makes supply chains cheap to run when everything works. The downside is that there is little buffer when something goes wrong.
What can go wrong
Disruptions come from many directions: extreme weather, factory closures, shortages of a key part, congestion at ports or problems on major shipping routes. A well-known example came in March 2021, when the large container ship Ever Given blocked the Suez Canal for about six days and hundreds of ships had to wait.
During the pandemic, demand for goods shifted suddenly while factories and ports were working below normal capacity. Shipping costs rose sharply, and some goods became hard to find for months.
How it reaches the price tag
When transport, materials or parts become more expensive, companies first try to absorb part of the cost. If the higher costs last, many pass them on to customers. Because goods are ordered and shipped weeks or months in advance, the change usually reaches shop prices with a delay.
What to watch in the news
Reports about shipping costs, delivery times and stock levels can give an early hint of price changes for goods. When these pressures ease, the effect on prices also tends to fade gradually rather than all at once.
This article is general information for learning purposes. It is not professional advice.