Robuta

https://www.home.saxo/en-hk/content/articles/quarterly-outlook/equity-outlook-the-high-cost-of-global-fragmentation-for-us-portfolios-02042025

https://www.home.saxo/en-gb/content/articles/quarterly-outlook/equity-outlook-the-high-cost-of-global-fragmentation-for-us-portfolios-02042025

https://jbafp.archive.jams.pub/article/2/3/57/htm

https://www.evalin.org/cost-of-equity/1q-2021