Argentina nation-specific ETFs climbed Friday after e-commerce retailer MercadoLibre Inc rallied to a record excessive on a first-quarter income beat. While most of its opponents have gone out of business, MercadoLibre continues to thrive. The corporate expanded to 9 international locations in the Americas and Europe, and in 2002, eBay bought a stake in the company, making MercadoLibre its officia