Neo-Malthusianism

Neo-malthusianism is a set of doctrines derived from Thomas Malthus's theory that limited resources keep populations in check and reduce economic growth. Current proponent of Neo-Malthusianism is the Club of Rome. Scholars working with the original Malthus Theory included the advocated use of contraception to the theory which formed the basic views of Neo-Malthusianism.

Malthus believed population growth was exponential, and agricultural growth was arithmetic; therefore, population growth will increase at such a rate that eventually there won't be enough food for the subsistence of the population. This appears to describe rather accurately sociodemographic dynamics of complex pre-industrial societies and serves as a basis for modern mathematical models of long-term historical dynamics (see, e.g., Peter Turchin 2003; Peter Turchin et al. 2007).