By Anthony Boadle BRASILIA (Reuters) – Incumbent President Dilma Rousseff pulled ahead again in a new poll ahead of Brazil’s presidential election and she appears to be the favorite to win Sunday’s runoff although the vote is still too close to call. The Datafolha poll, released on Wednesday, was the fourth in three days to show that Rousseff is numerically in front of her rival Aecio Neves, the financial markets’ favorite who has promised business-friendly policies to revive a sluggish economy. …

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