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  1. Math

    Firm Data

    Business firms range in size from boutiques operated by individuals to huge multinational corporations employing thousands. You would expect that there are fewer large businesses than small ones. In economics, however, it’s useful to characterize the size distribution of firms more precisely than that. Within an industry, for example, the firm size distribution would indicate […]

    By Ivars Peterson

  2. Hair Today, Gone Tomorrow?

    Some scientists suggest that a better understanding of hair biology might not only lead to new treatments for people with too little (or too much) hair but also shed light on cancer, the growth and development of bodily organs, and other matters.

    By Damaris Christensen

  3. Ant invaders strand seeds without rides

    Invading Argentine ants may reshape the plant composition of the South African fynbos ecosystem because the newcomers don't disperse seeds.