After an historic defeat for the long-dominant political left, two candidates have promised a new pro-market direction.

As voters in Bolivia prepare to go to the polls for the final round of the country’s presidential election, there is no left-wing candidate on the ballot for the first time in nearly two decades.

Since the last election, the current governing party, the Movement Towards Socialism (MAS), has suffered an implosion, with party leaders splintering off and attacking one another.

Amid the fracas, MAS failed to advance a candidate to the run-off election, meaning its leadership — nearly uninterrupted since 2006 — is slated to come to an end.

A centrist and a right-wing candidate are now facing off in Sunday’s highly anticipated run-off.

But the election is unlikely to smooth over the divides that have fractured and destabilised Bolivian politics in recent years, with a severe economic crisis spurring continuing unrest.

Who are the candidates? What issues are front and centre for voters? And what challenges could the new government face in the months ahead? We answer those questions and more in this brief explainer.

When does voting take place?

The run-off vote will take place on October 19, with the winner of the election inaugurated on November 8.

What was the result of the first round?

The final stage of the election is itself a sign of the shifting and unpredictable state of the country’s politics.

Rodrigo Paz, one of the two final candidates, was the surprise victor in the first round of voting despite registering le