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GLOBAL MARKETS-Shares rise as trade optimism muffles impeachment noise

* MSCI's world equity index flat after erasing losses

* Trump impeachment talk adds to geopolitical risk

* U.S.-China trade optimism boosts Europe

* But investors see major deal in October unlikely

* Dollar flat, euro at more than 2-year lows

* Wall Street futures up 0.3%

* Graphic: World FX rates in 2019 http://tmsnrt.rs/2egbfVh (Updates prices, adds sterling fall, euro zone inflation expectation)

By Tom Wilson

LONDON, Sept 27 (Reuters) - World shares erased losses on Friday, buoyed by a wave of optimism that U.S.-China trade tensions might be easing as markets largely brushed off concerns about possible impeachment moves against U.S. President Donald Trump.

MSCI's world equity index, which tracks shares in 47 countries, reversed earlier losses and was trading flat by 1120 GMT. It was still heading towards its worst weekly performance since mid-August, though.

Europe's STOXX 600 index fared better, adding 0.5% as London's bourse outperformed on a weaker pound and hopes grew of progress towards resolving the trade war. Wall Street futures also suggested a bright start for U.S. markets, gaining around 0.3%.

Investors focused on a whistleblower report that said Trump abused his office in trying to solicit Ukraine's interference in the 2020 U.S. election for his political benefit, and that the White House tried to "lock down" evidence about that conduct.

The report came after the speaker of the U.S. House of Representatives Nancy Pelosi this week launched an impeachment inquiry into Trump, who has denied wrongdoing.

However, chances of his being removed from office look slim given that the Republicans control the Senate, where any impeachment trial would be held.

"What we are waiting to see is how this might impact the U.S.-China trade negotiations," said Hugh Gimber, global market strategist at J.P. Morgan Asset Management.

"It's that combination this week of weakening economic data and rising political uncertainty that has caused some tricky periods in markets."

Earlier in the day, Asia-Pacific shares outside Japan had been buffeted by the political worries in the United States and shed 0.3%.

The dollar index measuring it against a basket of currencies was up 0.1% near a three-week high of 99.146, and on track for its best week in a month.

Balancing worries over the ramifications of any possible impeachment of Trump was an apparent easing of trade tensions between Washington and Beijing.

The trade war has upset financial markets and disrupted global supply chains as the world's two largest economies heap hundreds of billions of dollars in tariffs on each other's products.


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