* Dollar gains against euro, yen on political developments * Spot gold breaks $4,000 as safe havens find buyers * Analysts question the pricing of the Fed easing path * Kiwi dollar tumbles as RBNZ surprises with 50 basis point cut (Updates throughout for European trade) By Stefano Rebaudo and Gregor Stuart Hunter Oct 8 (Reuters) – The euro and the yen were headed for a third straight daily loss against the U.S. dollar, pressured by political turmoil in France and expectations of increased fiscal spending in Japan. Expansive economic policies in Japan and France’s struggle to rein in its fiscal deficit are expected to increase the risk premium investors demand to hold government bonds, weighing on both currencies. Stocks fell and the dollar firmed on Wednesday while a prolonged U.S. governm

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