maker bayer outbid rivals for merck and company's consumer care business. bayer bought the unit for 14-billion dollars. it aims to become the largest over- the-counter drug maker in the world. merck shares fell 2% in trading yesterday. office depot will close at least 400 stores -- a quarter of its outlets. the company states after merging with office max last year there was an overlap of retail locations. the office supply chain has also suffers as shoppers buy more supplies on-line and at bulk retailers. office depot reported earnings tuesday that exceed estimates and backed its full year forecast sending shares 16% higher. also turning in earnings. a-i-g. shares fell 4% as the insurance giant reported a decline in operating income for the first quarter-- as catastrophe losses rose. and chipamaker nvdia sold more graphics cards for computers and gaming consoles than analysts expected. but its stock fell two-percent. analysts attribute that to due to the lack of a forecast for the...