Merck's (MRK) shares fell slightly on weak Q3 2013 earnings. The company's revenue growth is under severe pressure due to the continued impact of the loss of patent exclusivity of certain key drugs, adverse currency movements and the weakness in diabetes drug sales in the U.S.
The R&D (research and development) productivity has declined over the years, and the strategy of developing drugs for major diseases is not working. The landscape of the global pharmaceutical industry is shifting toward more niche, innovative and genetically targeted medicines and Merck needs to adapt. read more.