Why are Authors Citing Older Papers?

Scholars are citing an increasingly aging collection of scholarship. Does this reflect the growing ease with accessing the literature, or a structural shift in the way science is funded–and the way scientists are rewarded?

Visualizing World Article Production

World production of scientific literature continues to grow at nearly 3% per year. China, Brazil, and India account for a much larger share of the world’s output, while the United States and Japan’s share continues to decline. Interactive world maps show the growth of article production, and focus on the countries that continue to dominate the top literature.