El Salvador's Laguna de Apastepeque has turned turquoise from a cyanobacteria bloom, drawing crowds to the San Vicente volcanic lake.

A currency’s essential feature is to be a medium of exchange. We leverage a quasi-natural experiment—El Salvador as the first country to make bitcoin legal tender—to study a cryptocurrency’s potential ...

"Memory is elusive. It changes with time and it's different for each person who experienced a particular event. Nonetheless, ...