English Abstract: The long-horizon event study methodology is used to document the severe impact of the US subprime mortgage crisis on the Colombian economy. The estimated parameter of a constant mean return model is used to derive the “abnormal return” on the market portfolios of Colombia...

The Brazilian mineral industry has maintained a steady growth rate in recent years and despite the impacts of the Covid-19 pandemic, which affected all economic activity sectors, mining performance showed significant growth in 2020, generating public revenues from mining royalties 35% higher...

The Brazilian mineral industry has maintained a steady growth rate in recent years and despite the impacts of the Covid-19 pandemic, which affected all economic activity sectors, mining performance showed significant growth in 2020, generating public revenues from mining royalties 35% higher...