But PepsiCo Inc PEP.O and General Electric Co GE.N gained in premarket trading after lifting profit forecasts on Tuesday. By Amanda Cooper LONDON, April 25 (Reuters) - Stocks fell on Tuesday, while the dollar got a lift as investors focused on this week's corporate earnings and macro data, hoping they would paint a clearer picture of the health of the global economy. People still don't know how much bank lending has been impacted by recent developments ... (or) when inflation will durably peak," said Prashant Bhayani, chief investment officer Asia, BNP Paribas Wealth Management.