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GEMTELLIGENCE: accelerating gemstone classification with deep learning

The value of luxury goods, particularly investment-grade gemstones, is influenced by their origin and authenticity, often resulting in differences worth millions of dollars. Traditional methods for determining gemstone origin and detecting treatments involve subjective visual inspections and a range of advanced analytical techniques. However, these approaches can be time-consuming, prone to inconsistencies, and lack automation. Here, we propose GEMTELLIGENCE, a novel deep learning approach en...

ESG factors and firms' credit risk

We explore the relationship between credit risk and Environmental, Social, and Governance (ESG) dimensions using Supervised Machine Learning (SML) techniques on a cross-section of European listed companies. Our proxy for credit risk is the z-score originally proposed by Altman (1968). As potential explanatory variables, we consider an extensive number of raw ESG factors sourced from the rating provider MSCI. In the first stage, we demonstrate, using different SML methods such as LASSO and Ran...

Crisi d'impresa e Costituzione

L'articolo affronta il delicato bilanciamento di principi costituzionali coinvolto dal nuovo codice della crisi e dell'insolvenza.

Measuring science: performance metrics and the allocation of talent

We study how performance metrics affect the allocation of talent by exploiting the introduction of the first citation database in science. For technical reasons, it only covered citations from certain journals and years, creating quasi-random variation: some citations became visible, while others remained invisible. We identify the effects of citation metrics by comparing the predictiveness of visible to invisible citations. Citation metrics increased assortative matching between scientists a...

When the bad guys are wearing white hats

Allegations of ethical misconduct by lawyers have all but completely overshadowed the substantive claims in the case regarding Chevron's activities in Ecuador. While both sides have been accused of flagrant wrongdoing, the charges against plaintiffs’ counsel appear to have captured more headlines and garnered more attention. One important reason the apparently lopsided attention is that plaintiffs’ counsel were presumed to be the ones wearing white hats in this epic drama. This essay postu...

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