100 Great Business Ideas: From Leading Companies Around the World

100 Great Business Ideas is a reference-style compendium rather than a single argument developed across chapters. Business writer and consultant Jeremy Kourdi, formerly a senior vice-president at The Economist Group, collects one hundred discrete ideas drawn from real companies — ranging from simple, almost self-evident practices to ideas grounded in more rigorous management research — and presents each as a short, self-contained entry of two to four pages. In his introduction, Kourdi explicitly states that the ideas are presented in no particular order or grouping, intended for readers to browse and apply selectively rather than read as a progressive argument.

Each entry follows a consistent internal structure: a numbered, descriptive title; an explanation of the underlying idea with references to relevant management thinking; a real-world example from a company that used it effectively; a practical "In practice" list of four to ten actionable steps; and often a closing quote or summarizing remark. This modular format is the book's defining feature — it is designed for quick reference on a specific problem (say, building customer loyalty or improving pricing) rather than sequential reading.

Despite the lack of formal grouping, several themes recur across the hundred entries: the value of deliberate experimentation and tolerance for calculated risk; the discipline of building loyalty (with customers, employees, and partners alike) as a durable competitive advantage; the power of simplicity in both product design and communication; and the importance of aligning day-to-day operational habits with a company's stated values, rather than treating culture as a separate initiative from execution.

Kourdi draws his case studies from a wide range of company types and eras, pairing well-known examples (such as Harley-Davidson's turnaround through customer loyalty) with less famous illustrations, and frequently anchors an idea in a named management thinker or body of research before showing how a specific company put it into practice. The intent, as Kourdi states directly, is not to offer a single formula for success but to stimulate the reader's own thinking — providing raw material that can be adapted to the reader's specific situation rather than applied as a template.

Because the book explicitly avoids grouping its hundred ideas into named chapters or sections, this entry organizes them into broad thematic clusters for readability, based on the dominant subject matter of ideas that appear across the book, rather than any structure the book itself imposes.