--- title: Insights | Francesco Cesarone, Fabiomassimo Mango, Gabriele Sabato description: insights image: https://content.wiserfunding.com/hubfs/Wiserfunding%20Logo%20-01%20(3).png --- [![Logo_Wiserfunding Logo -01-1](https://content.wiserfunding.com/hubfs/Logo_Wiserfunding%20Logo%20-01-1.png)](https://www.wiserfunding.com/) - [SOLUTIONS](https://wiserfunding.com/solutions/) [SIGN IN](https://risk.wiserfunding.com/login) [GET STARTED](https://www.wiserfunding.com/demo-request/) # Insights Gain perspective with the latest news, research, and success stories in SME credit. Sign up to get updates when new content is available.   [GET STARTED](https://www.wiserfunding.com/demo-request/) ![MicrosoftTeams-image (12)](https://content.wiserfunding.com/hubfs/MicrosoftTeams-image%20(12).png) - [ALL](https://content.wiserfunding.com/insights/all) - [News](https://content.wiserfunding.com/insights/tag/news) - [Research](https://content.wiserfunding.com/insights/tag/research) - [Blog](https://content.wiserfunding.com/insights/tag/blog) - [Case Studies](https://content.wiserfunding.com/insights/tag/case-studies) This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. Research ### [Z-score vs minimum variance preselection methods for constructing small portfolios](https://content.wiserfunding.com/insights/research/z-score-vs-minimum-variance-preselection-methods-for-constructing-small-portfolios) ## Abstract Several contributions in the literature argue that a significant in-sample risk reduction can be obtained by investing in a relatively... Francesco Cesarone, Fabiomassimo Mango, Gabriele Sabato Oct 26, 2021 ### Get notified on new marketing insights Be the first to know about new B2B SaaS Marketing insights to build or refine your marketing function with the tools and knowledge of today’s industry. © 2023 Wiserfunding All rights reserved