17/10/2023

SEC insider trading rule has loopholes, says study

A rule to limit trading based on nonpublic stock information has limited effectiveness, according to a recent study by Texas McCombs Finance Professor Robert Parrino.

New dating of cave art reveals history of Puerto Rican people

In the karstic caves of Puerto Rico, cave art paints the rock walls. Previous research has assigned ages to this art based on the ages of nearby archaeological artifacts within the caves, but these ages are relative and may ...

In 2020, 30% of the Pantanal was burned to cinders by wildfires

In 2020, the Pantanal, the largest tropical freshwater wetland in the world and a biodiversity hotspot, was swept by high-intensity fires that destroyed native vegetation in an area totaling 44,998 square kilometers, or about ...

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