By: G.P. | ABUJA. This article was originally published by The Economist.Protest music in Liberia GIRLS in tight skirts and bright tops hold bottles of beer as they weave their way down the sandy lane towards Bernard’s Beach in Monrovia, Liberia's capital. A throng of young Liberians have gathered at one of the year’s biggest parties and most revellers are celebrating the growing popularity of Hip Co, a musical movement in the long-troubled West African country. The beach stage is propped up against a skeletal building, a memory of more than a decade of civil war. The performers face out to [...]