Unverified50% confidenceFactExact time
Mainstream email marketing tools have long used a pricing model based on the number of stored contacts.
1
Sources
50%
Confidence
Long-term
Relevance
9/14/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe "comprehensive ranking" on mainstream e-commerce platforms such as Taobao and JD.com takes into account paid promotion weight, sales conversion rate, store credit score, and user reviews, with advertising bidding often carrying considerable weight.69% similarUnverifiedThe business logic of the subscription service model is that hardware sales provide one-time revenue, subscription services generate predictable recurring revenue, and companies with a high proportion of recurring revenue typically receive higher valuations in capital markets.67% similarUnverified有效市场假说由尤金·法马于1970年提出，主张市场价格已充分反映所有公开信息，主动择时难以持续获得超额收益64% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/920174API
curl https://kongchang.com/api/v1/knowledge/claims/920174MCP
get_claim(id=920174)