6 ideas
Screen out almost every listed company by demanding revenue growth of at least 10% and return on capital employed of at least 15% in every one of the last ten years, not just on average. Passing every year shows a moat that holds through downturns, input-cost shocks and competitive attacks. The few survivors can then be held for long periods rather than traded on valuation swings.
Classify competitive advantage by source: innovation, brand, architecture, reputation and strategic assets. Durable Indian compounders relied most on architecture, meaning their dense relationships with dealers, suppliers and employees. A rival can copy a product or outspend on advertising, but it cannot quickly rebuild thousands of trusted dealer relationships and the information flowing through them.
Asian Paints invested in computers and demand forecasting decades before its peers and used them to restock a huge, fragmented dealer network frequently and in small lots. Dealers could carry less inventory without running out of stock, which made them loyal and gave the company early visibility of demand by shade and region. That supply-chain precision, not product superiority, let it outgrow multinational rivals.
Marico faced a far larger and better-funded Hindustan Lever in coconut oil. It held its ground by fixing unglamorous problems: it moved from tins to plastic bottles that would not leak or attract rodents in transit, bought copra more directly, and cultivated retailers. A small player can beat a giant in one category by being more obsessive about that category's supply chain and packaging.
The compounders reinvested mostly in their core business and adjacent categories. They refused unrelated diversification and large leveraged acquisitions, and returned surplus cash through dividends. Because they avoided value-destroying swings, even modest incremental moves compounded at high returns on capital for decades.
The durable firms separated family ownership from day-to-day management and brought in professional executives. They built boards and processes that let a business outlast any one leader or heir. Promoters who kept related-party dealings clean and let capable outsiders run operations kept the compounding going across generations.