Updates

  1. Person pages list letters, writing, profiles and links as sortable tables with filters, and show each person's companies as links; Fund letters show each letter's description in its own column.
  2. Experts show a checked job title and a short description of each person; 30 more people have photographs.
  3. Every company, fund, university and publication the experts work for has a page listing the people there.
  4. Fund letters show each letter's thesis and filter by it; 225 person pages list the essays, columns and newsletter issues the person wrote.
  5. Person pages list every essay and newsletter issue a person wrote, and their own books as a table in List view.
  6. Recommends shows the five largest kinds of book and the rest under More; browse pictures load sooner.
  7. Podcasts and talks link the original episode, filter by Audio and video or Press, and list each publisher once.
  8. Pages are wider, Recommends has List and Grid, and a filter clicked again turns off.
  9. Book cards sit in a ruled grid with Open Library and Goodreads links and each book's one-line note.
  10. Funds is now Investors; each investor's styles are buttons that filter the table.
  11. Podcasts and talks on a person's page filter by year and publisher and show as a list or a grid of pictures.
  12. Quotes show only people's own words: 472 summaries written by list sites are gone.
  13. Country pages open from Browse again, and every link on the shelf lands on a page.
  14. Subject and person pages show their sections as tabs, and each book appears once on a person's page.
  15. Book cards show the quote, who said it and the source; grids show five cards to a row.
  16. On a phone, a menu holds the sections, search, Updates, Feedback and dark mode.
  17. Feedback takes a screenshot of the page with no browser prompt, opens a screenshot full size when you click it, and clears itself once sent.
  18. Book cards are centred, search names the topic each book sits in, and any text cut short shows whole on hover.
  19. Search groups its results by kind: people, companies, geographies, subjects, topics, books, funds, fund letters and papers.
  20. The Books table lists who recommended each book by name, and the browser tab names the section you are in.
  21. Feedback can take a screenshot of the page, or one you paste or choose, and opens in the corner beside Updates.
  22. Each rail button reopens its section where you left it, and Browse, Table and People show on every book and subject page.
  23. Filters grey out choices that hold nothing instead of hiding them, and Books › People filters by authors or recommenders.
  24. Feedback takes a subject line and up to three screenshots.
  25. Biographies are grouped by the person they are about: 41 new pages, from Abraham Lincoln to Lee Kuan Yew.
  26. Sport splits into 23 sports, and Religion into one topic per faith.
  27. Book lists show as cards: the cover, one recommendation quote and every recommender by name.
  28. Seventeen subjects that had two or three pages under different names now have one page each.
  29. Every page lists its Experts as authors and recommenders, with a link to them on the Experts tab.
  30. Economics, Financial history, Financial panics and Accounting are subjects of their own, with one page per financial crisis.
  31. Book, person and subject pages open inside the app, so the tabs stay in view.
  32. 996 more book covers, and photographs or logos for 227 more people and companies.
  33. Books › Browse shows every subject as cards, and the rail holds Fund letters, Papers, Experts, Books and Funds.
  34. Every topic over 150 books splits into narrower topics, each with a page of its own.

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Platform Revolution

Platform Revolution

Geoffrey G. Parker, Marshall W. Van Alstyne, Sangeet Paul Choudary
2016
T1 336 pages · about 5h 36m to read Open Librarygoodreads

The standard text on network effects, governance and platform pricing.

Summary

Parker, Van Alstyne and Choudary set out the economics and design of platform businesses, meaning businesses that create value by facilitating exchange between two or more groups rather than by producing goods themselves. Their central analytical distinction is between pipeline businesses, which control a linear value chain from input to customer, and platforms, which orchestrate interactions and where the assets sit with the participants. This changes what a business optimises: pipelines optimise internal processes and platforms optimise the interactions between users.

The economic content covers network effects in detail, distinguishing same-side from cross-side effects and positive from negative ones, and treating the management of negative network effects, including low-quality participants and spam, as a core design problem rather than a nuisance. They cover the chicken and egg problem of building both sides simultaneously, with eight specific strategies including seeding one side, single-side first, and marquee participant acquisition.

The design material addresses the core interaction that must be identified before anything else, the pull, facilitate and match functions a platform must perform, and openness decisions covering who may participate, who may develop on the platform and who controls the resulting value.

They also cover monetisation, arguing that a platform must decide which side subsidises the other and which interaction to charge for, and governance including rules, standards and dispute resolution. The book is academic in origin and reads as a textbook. The examples are from before 2016 and the platform regulatory environment has changed substantially. It remains the most systematic treatment of the mechanics rather than the narrative of platform businesses.

Key takeaways 8

  1. Platforms create value by facilitating interactions between groups rather than by producing goods, which changes what the business optimises.
  2. The core interaction between participants must be identified before any feature is designed, since everything else exists to enable it.
  3. Cross-side network effects mean each side's value depends on the other's participation, which is what creates the chicken and egg problem.
  4. Negative network effects from low-quality participants can destroy a platform, which makes curation a core design function rather than a policing cost.
  5. A platform must decide which side subsidises the other, and the choice depends on which side is harder to attract and which creates more value.
  6. Openness decisions determine who may participate, who may build on the platform and who captures the resulting value, and all three are separate choices.
  7. Platforms invert the firm, since the productive assets sit with participants rather than being owned by the business.
  8. Governance including rules, standards and dispute resolution is what allows strangers to transact, and platforms that neglect it fail on trust rather than on demand.

Who should read it

Founders and investors building or evaluating multi-sided businesses who want the mechanics of network effects, monetisation and governance.

Who recommended it 1

Reid Hoffmanreported

Similar books 6

Chosen by shared topics, the entries that hold them, and the people who recommended both.

Carl Shapiro, Hal R. Varian · 1998

Economics for information goods: pricing, versioning, lock-in and network effects.

David S. Evans, Richard Schmalensee · 2016

How multi-sided platforms such as card networks get both sides on board at once.

Michael A. Cusumano, Annabelle Gawer, David B. Yoffie · 2019

Innovation platforms and transaction platforms, and what each needs to succeed.

Alex Moazed, Nicholas L. Johnson · 2016

Practitioner account of how platform businesses capture a transaction.

Annabelle Gawer, Michael A. Cusumano · 2002

How Intel and others became and stayed leaders of technology platforms.

Sangeet Paul Choudary · 2015

Designing the interaction that a platform is actually built around.

Where it sits in the reference 6

Business models
Business models
Business themes
Business themes
Business themes
Economics

Topics

Business and ManagementTechnology and ComputingEconomicsTech strategy and platform economics