Brazil

Silva's backing may boost an ascending Neves, but negative campaigning may take its toll

Neves's current slight advantage over Rousseff may well slip as negative campaign takes hold

Economic doubts may help Neves, but he faces a barrage of negative campaigning on social policies

Efforts to gain voter confidence in economic policy proposals will be central to the presidential campaign

Markets are keen to see a Neves victory, but coalition-building will be difficult regardless of the outcome

Neves may prove a more difficult run-off opponent for Rousseff than Silva would have been

The latest Ibope poll puts a first-round victory almost within reach

With relatively limited viable alternatives in the short term, farmers will opt to boost soya plantings