* Yield on global 2040 rises 6 bps to 2.58 pct
* Real, stocks seen little changed in post election day
* Runoff seen delaying implementation of currency steps
By Guillermo Parra-Bernal
SAO PAULO, Oct 4 (Reuters) - Brazilian global bonds fell on Monday, reflecting concern that political tension might heighten in the coming weeks as the nation's presidential election enters a runoff.
The price on the Brazilian dollar-denominated bond due in
Aug. 2040
Ruling party candidate Dilma Rousseff placed a strong first in Brazil's presidential election on Sunday but will face a runoff after some voters were turned off at the last minute by a corruption scandal and her views on social issues [ID:nN03268734].
"The confrontational nature of the runoff should add some spice to the contest, and candidates will have to speak out more clearly about their ideas," said Mauricio Rosal, Latin American economist at Raymond James in Sao Paulo.
With almost all votes counted, Rousseff won 46.9 percent of the valid votes. She needed 50 percent to avoid a runoff on Oct. 31.
The result was somewhat of a surprise, since she received lower percentage of votes than most polls had forecast.
Rousseff, who was handpicked by President Luiz Inacio Lula da Silva to continue the center-left economic policies that have made Brazil one of the world's hottest emerging markets, will now go up against her nearest rival, former Sao Paulo state governor Jose Serra.
Serra won 32.6 percent of the votes.
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Full coverage of election: [ID:nBRAZIL]
Special report on Rousseff: http://link.reuters.com/fab25p
Election Top News page: http://link.reuters.com/dux43p
Graphic on polls: http://link.reuters.com/vux47n
Political risks in Brazil: [ID:nRISKBR]
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The runoff could delay the implementation of long-awaited
measures to arrest rapid gains in the currency, the real
Analysts and investors expect the country's currency and stocks to be little changed as the possibility of a runoff gained ground in recent days.
"We believe that markets would react favorably to a second round, because it would give voters and observers another 30 days to analyze the proposals of Rousseff and Serra," wrote Paulo Leme, a senior economist at Goldman Sachs in Miami, in a note to clients.
The main stock index in Brazil, the Bovespa <.BVSP> rose for a fifth day on Friday. The real closed at 1.68 reais on Friday.
(Additional reporting by Luciana Lopez, Samantha Pearson and Silvio Cascione in Sao Paulo)