It is shown here that market crashes and bubbles can arise without external shocks. Sudden changes in behavior may be the result of endogenous information processing. Except for the daily observation of the market, there is no new information, no communication and no coordination between the...

Global health care issues are driving the public sector into a balancing act between conflicting and complementary forces of inevitable change: an ageing population, the explosion of new therapeutic technologies, a critical shortage of clinical professionals, the desire to improve clinical...