Amora Elsaify
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Making matrices better: Geometry and topology of polar and singular value decomposition Open
Our goal here is to see the space of matrices of a given size from a geometric and topological perspective, with emphasis on the families of various ranks and how they fit together. We pay special attention to the nearest orthogonal neighb…
The Innovation Premium Open
Firms that engage in innovative product development, as measured by the fraction of their investment that goes to Research and Development (R&D) activities, earn higher risk-adjusted equity returns. A portfolio that goes long the most inno…
Why Do Firms Issue Callable Bonds? Open
Corporations in the US have significantly increased their usage of callable bonds in the past 10-15 years. Whereas callable debt was issued in the past for interest rate hedging motives, the vast majority of callable bonds issued today hav…