The Cigna Group, together with its subsidiaries, provides insurance and related products and services principally in the United States. The Cigna Group, formerly known as Cigna Corporation, is based in Bloomfield, Connecticut....
+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 3 October 2026
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America's Top 5 tech firms, Apple, Alphabet, Microsoft, Amazon, and Facebook have become the most valuable publicly listed companies in the world. These
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Better corporate ownership governance through worldwide convergence toward Berle-Means stock ownership dispersion Abstract We design a model
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As former chairman of the British Financial Services Authority and former director of the London School of Economics, Howard Davies shares his ingenious ins
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Donald Trump and Kim Jong Un meet, talk, and shake hands in the historic peace summit between America and North Korea in Singapore. At the start of the bila
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Addendum on empirical tests of multi-factor models for asset return prediction Fama and French (2015) propose an empirical five-factor asset pricing mode
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In recent years, the current AI-driven stock market rally may or may not turn out to be another major asset bubble in global human history. For the pract