Twitter is a public, real-time, global platform where any user can create a Tweet and any user can follow other users. The platform is unique in its simplicity: Tweets are limited to 140 characters of text. This constraint makes it easy for anyone to quickly create, distribute and discover content that is consistent across our platform and optimized for mobile devices. As a result, Tweets drive a high velocity of information exchange that makes Twitter uniquely `live`....
+See MoreSharpe-Lintner-Black CAPM alpha (Premium Members Only) Fama-French (1993) 3-factor alpha (Premium Members Only) Fama-French-Carhart 4-factor alpha (Premium Members Only) Fama-French (2015) 5-factor alpha (Premium Members Only) Fama-French-Carhart 6-factor alpha (Premium Members Only) Dynamic conditional 6-factor alpha (Premium Members Only) Last update: Saturday 13 June 2026
2019-05-03 11:29:00 Friday ET

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2018-05-04 06:29:00 Friday ET

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2018-05-29 11:40:00 Tuesday ET

America and China, the modern world's most powerful nations may stumble into a **Thucydides trap** that Harvard professor and political scientist Graham
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A Florida fintech group Fidelity Information Services initiates the largest $43 billion acquisition of the e-commerce payments processor Worldpay. Fidelity