In mid-2018, Colombians will head to the polls to elect their next president. Already, the political scene is a crowded one: Several major parties in the political spectrum from center-left to center-right will field candidates. The Colombian economy's sluggish growth -- expected to hit only about 2 percent this year -- and the relatively low approval ratings for President Juan Manuel Santos may conspire to end the 14-year reign of the ruling National Unity coalition. But more than political affiliation, the structural issues facing Colombia will dictate the course of the next administration. In particular, three factors -- the sluggish economy, the peace deal with the Revolutionary Armed Forces of Colombia (FARC) and a surge in coca production -- will be crucial in shaping the country's political landscape after the 2018 vote....
