By Reuters Staff (Adds details, updates prices) MOSCOW, March 1 (Reuters) - The Russian rouble firmed on Monday, pricing in rising oil prices and appetite for riskier assets, as the Moscow Exchange opened three hours earlier than previously in a move to capture more Asian investors. At 1304 GMT, the rouble was 0.7% stronger against the dollar at 74.10. Versus the euro, it gained 0.8% to trade at 89.30, having earlier touched its strongest level in more than a week of 89.1725. “The rouble’s further dynamics will be determined by investors’ general attitude towards emerging market assets ...