# Ebay

`kaal:entity:ebay`

**Status.** derived

This node is assembled mechanically from the 3 claims that carry the concept tag `ebay`. It is a roster of what the corpus says under this term. It is **not** an adjudicated definition: no single statement here has been ruled canonical, and no first-appearance call has been made. Read the claims and judge for yourself.

## Every claim under this term

3 claims across 3 works, 2018 to 2021.

**2018**

- [3266953-007](https://wulfkaal.github.io/claims/3266953-007) [failure/evidenced] *(failure mode)* -- Displayed net feedback scores are a poor reputation instrument because they encourage Pollyanna assessments of reputation and are far from the best predictor of performance available in the data.
  > However, the net feedback scores that eBay displays encourages Pollyanna assessments of reputations, and is far from the best predictor available.
  Craig Calcaterra, Wulf A. Kaal, Gopinath Sivalingam, Reputation Protocol for the Internet of Trust - Conceptual Whitepaper (2018). SSRN: https://ssrn.com/abstract=3266953

**2019**

- [3411897-007](https://wulfkaal.github.io/claims/3411897-007) [failure/argued] *(failure mode)* -- eBay's user rating system, despite being its biggest competitive advantage, is clearly flawed, and the persistence of those flaws demonstrates the unmet need for a decentralized reputation verification system, since no better technology has yet been produced.
  > While the user ratings eBay uses clearly have flaws (that illustrate the need for a decentralized reputation verification system – discussed in Chapter 6), so far, nobody has been able to come up with a better technology.
  Wulf A. Kaal, Decentralization - Past, Present, and Future (2019). SSRN: https://ssrn.com/abstract=3411897

**2021**

- [3808852-014](https://wulfkaal.github.io/claims/3808852-014) [failure/argued] *(failure mode)* -- eBay's user rating system is visibly flawed and illustrates the need for a decentralized reputation verification system, yet no entity or individual has produced a better technology, and those decentralized ratings remained eBay's biggest competitive advantage.
  > While the user ratings eBay uses clearly have flaws (that illustrate the need for a decentralized reputation verification system), so far, no entity or individual has been able to come up with a better technology.
  Wulf A. Kaal, Decentralization and Feedback Effects (2021). SSRN: https://ssrn.com/abstract=3808852

## Verify

Every claim above resolves to a record carrying a verbatim source quote, the sha256 of the source PDF, and a preformatted citation. Nothing here asks to be taken on trust.

    curl -s https://wulfkaal.github.io/entities/ebay.md | sha256sum

**Canonical form.** This markdown file is the canonical hashed representation of this entity node. Its sha256 is the content hash.