---
title: "Alfred Weber's least-cost theory — Definition & Meaning"
description: "Alfred Weber's least-cost theory explains how firms choose industrial locations to minimize transport, labor, and agglomeration costs. Key for economists."
url: "https://modeldiplomat.com/learn/glossary/alfred-weber-s-least-cost-theory"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- Alfred Weber's least-cost theory is a 1909 model of industrial location holding that firms locate where the combined cost of transport, labour and agglomeration is minimised.
- What is the material index in Weber's theory and how is it used?
- What are isodapanes and what is the critical isodapane?
- How does Lösch's approach differ from Weber's?
- Why is Weber's theory criticised in the context of modern industry?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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In India's sugar industry, mills cluster in the cane belts of western Uttar Pradesh and Maharashtra because cane is weight-losing (material index above one), validating Weber's prediction that such firms locate at the raw-material source.

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