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MIT Press/Wright Allen Series in System Dynamics

A General Hypothesis and a Test Model of a Grassland

Natural ecosystems such as lakes, grasslands, and forests undergo succession from their early stages of development to maturity, when the community of plants and animals achieves a condition of equilibrium with its physical environment. Because ecosystems succeed in response to either natural or man-made disturbances, it is important to understand how successional behavior arises and how to control it to avoid permanent deterioration of systems indispensable for our survival.

Effects of Capacity Acquisition Policcies

Each year more than 400,000 new enterprises are formed, of which only 41% survive beyond their fifth birthday. Of the failures, 52% are due entirely to managerial incompetence and another 40% to lack of experience. Clearly the growth period presents company management a most difficult managerial task. This book studies the interaction between a company's capacity-acquisition policy and the growth rate of its new product: it demonstrates how different policies of acquiring manufacturing capacity can either suppress or facilitate this growth rate.